diff --git a/package.json b/package.json
index 30a24de43e..526074edd5 100644
--- a/package.json
+++ b/package.json
@@ -29,8 +29,8 @@
     "start": "cd packages/apps && webpack-serve --config webpack.config.js --port 3000"
   },
   "devDependencies": {
-    "@polkadot/dev-react": "^0.20.20",
-    "@polkadot/ts": "^0.1.29",
+    "@polkadot/dev-react": "^0.20.21",
+    "@polkadot/ts": "^0.1.30",
     "autoprefixer": "^9.1.5",
     "babel-loader": "^8.0.2",
     "css-loader": "^1.0.0",
diff --git a/packages/app-accounts/src/Editor.tsx b/packages/app-accounts/src/Editor.tsx
index a44a41b9c2..d7b3faad7f 100644
--- a/packages/app-accounts/src/Editor.tsx
+++ b/packages/app-accounts/src/Editor.tsx
@@ -6,21 +6,17 @@ import { KeyringPair } from '@polkadot/util-keyring/types';
 import { I18nProps } from '@polkadot/ui-app/types';
 
 import React from 'react';
-
+import AddressSummary from '@polkadot/ui-app/AddressSummary';
 import Button from '@polkadot/ui-app/Button';
 import Input from '@polkadot/ui-app/Input';
 import InputAddress from '@polkadot/ui-app/InputAddress';
 import keyring from '@polkadot/ui-keyring/index';
-import accountObservable from '@polkadot/ui-keyring/observable/accounts';
-import withObservableBase from '@polkadot/ui-react-rx/with/observableBase';
 
 import Forgetting from './Forgetting';
-import AddressSummary from '@polkadot/ui-app/AddressSummary';
-
 import translate from './translate';
 
 type Props = I18nProps & {
-  accountAll?: Array<any>,
+  allAccounts?: Array<any>,
   onBack: () => void
 };
 
@@ -41,16 +37,9 @@ class Editor extends React.PureComponent<Props, State> {
   }
 
   render () {
-    const { isForgetOpen, current } = this.state;
-
     return (
       <div className='accounts--Editor'>
-        <Forgetting
-          isOpen={isForgetOpen}
-          onClose={this.toggleForget}
-          doForget={this.onForget}
-          currentAddress={current}
-        />
+        {this.renderModals()}
         {this.renderData()}
         {this.renderButtons()}
       </div>
@@ -73,7 +62,6 @@ class Editor extends React.PureComponent<Props, State> {
           text={t('editor.forget', {
             defaultValue: 'Forget'
           })}
-
         />
         <Button.Group.Divider />
         <Button
@@ -97,15 +85,9 @@ class Editor extends React.PureComponent<Props, State> {
   }
 
   renderData () {
-    const { accountAll, t } = this.props;
+    const { t } = this.props;
     const { current, editedName } = this.state;
 
-    if (!accountAll || !Object.keys(accountAll).length) {
-      return t('editor.none', {
-        defaultValue: 'There are no saved accounts. Add some first.'
-      });
-    }
-
     const address = current
       ? current.address()
       : undefined;
@@ -146,6 +128,30 @@ class Editor extends React.PureComponent<Props, State> {
     );
   }
 
+  renderModals () {
+    const { current, isForgetOpen } = this.state;
+
+    if (!current) {
+      return null;
+    }
+
+    const address = current.address();
+    const modals = [];
+
+    if (isForgetOpen) {
+      modals.push(
+        <Forgetting
+          key='modal-forget-account'
+          address={address}
+          onClose={this.toggleForget}
+          doForget={this.onForget}
+        />
+      );
+    }
+
+    return modals;
+  }
+
   createState (current: KeyringPair | null): State {
     return {
       current,
@@ -173,13 +179,12 @@ class Editor extends React.PureComponent<Props, State> {
         } else {
           editedName = '';
         }
-        let isForgetOpen = false;
 
         return {
           current,
           editedName,
           isEdited,
-          isForgetOpen
+          isForgetOpen: false
         };
       }
     );
@@ -252,6 +257,4 @@ class Editor extends React.PureComponent<Props, State> {
   }
 }
 
-export default withObservableBase(
-  accountObservable.subject, { propName: 'accountAll' }
-)(translate(Editor));
+export default translate(Editor);
diff --git a/packages/app-accounts/src/Forgetting.tsx b/packages/app-accounts/src/Forgetting.tsx
index 0aa7265af7..38dc62f159 100644
--- a/packages/app-accounts/src/Forgetting.tsx
+++ b/packages/app-accounts/src/Forgetting.tsx
@@ -2,42 +2,28 @@
 // This software may be modified and distributed under the terms
 // of the ISC license. See the LICENSE file for details.
 
-import { KeyringPair } from '@polkadot/util-keyring/types';
 import { I18nProps } from '@polkadot/ui-app/types';
 
 import React from 'react';
-
+import AddressSummary from '@polkadot/ui-app/AddressSummary';
 import Button from '@polkadot/ui-app/Button';
 import Modal from '@polkadot/ui-app/Modal';
-import AddressSummary from '@polkadot/ui-app/AddressSummary';
 
 import translate from './translate';
 
 type Props = I18nProps & {
-  isOpen: boolean,
+  address: string,
   onClose: () => void,
-  doForget: () => void,
-  currentAddress: KeyringPair | null
+  doForget: () => void
 };
 
 class Forgetting extends React.PureComponent<Props> {
-  constructor (props: Props) {
-    super(props);
-  }
-
   render () {
-    const { isOpen, style } = this.props;
-
-    if (!isOpen) {
-      return null;
-    }
-
     return (
       <Modal
         size='tiny'
         dimmer='inverted'
         open
-        style={style}
       >
         {this.renderContent()}
         {this.renderButtons()}
@@ -72,11 +58,7 @@ class Forgetting extends React.PureComponent<Props> {
   }
 
   renderContent () {
-    const { t, currentAddress } = this.props;
-
-    const address = currentAddress
-      ? currentAddress.address()
-      : undefined;
+    const { address, t } = this.props;
 
     return [
       <Modal.Header key='header'>
@@ -84,10 +66,11 @@ class Forgetting extends React.PureComponent<Props> {
           defaultValue: 'Confirm account removal'
         })}
       </Modal.Header>,
-      <Modal.Content className='forgetting--Account' key='content'>
+      <Modal.Content key='content'>
         <AddressSummary
-          className='ui--AddressSummary-base'
-          value={address || ''}
+          className='accounts--Modal-Address'
+          value={address}
+          withCopy={false}
         />
       </Modal.Content>
     ];
diff --git a/packages/app-accounts/src/index.css b/packages/app-accounts/src/index.css
index 73a86d9690..11dcb164bb 100644
--- a/packages/app-accounts/src/index.css
+++ b/packages/app-accounts/src/index.css
@@ -2,6 +2,6 @@
 /* This software may be modified and distributed under the terms
 /* of the ISC license. See the LICENSE file for details. */
 
-.forgetting--Account {
+.accounts--Modal-Address {
   text-align: center;
 }
diff --git a/packages/app-accounts/src/index.tsx b/packages/app-accounts/src/index.tsx
index afb9f71ad9..dadc796bd8 100644
--- a/packages/app-accounts/src/index.tsx
+++ b/packages/app-accounts/src/index.tsx
@@ -3,24 +3,30 @@
 // of the ISC license. See the LICENSE file for details.
 
 import { I18nProps } from '@polkadot/ui-app/types';
+import { SubjectInfo } from '@polkadot/ui-keyring/observable/types';
 
 import './index.css';
 
 import React from 'react';
-import Tabs from '@polkadot/ui-app/Tabs';
+import accountObservable from '@polkadot/ui-keyring/observable/accounts';
+import Tabs, { TabItem } from '@polkadot/ui-app/Tabs';
+import withObservableBase from '@polkadot/ui-react-rx/with/observableBase';
 
 import Creator from './Creator';
 import Editor from './Editor';
 import translate from './translate';
 
 type Props = I18nProps & {
+  allAccounts?: SubjectInfo,
   basePath: string
 };
 
 type Actions = 'create' | 'edit';
 
 type State = {
-  action: Actions
+  action: Actions,
+  hidden: Array<string>,
+  items: Array<TabItem>
 };
 
 // FIXME React-router would probably be the best route, not home-grown
@@ -30,28 +36,69 @@ const Components: { [index: string]: React.ComponentType<any> } = {
 };
 
 class AccountsApp extends React.PureComponent<Props, State> {
-  state: State = { action: 'edit' };
+  state: State;
+
+  constructor (props: Props) {
+    super(props);
+
+    const { allAccounts = {}, t } = props;
+    const baseState = Object.keys(allAccounts).length !== 0
+      ? AccountsApp.showEditState()
+      : AccountsApp.hideEditState();
+
+    this.state = {
+      ...baseState,
+      items: [
+        {
+          name: 'edit',
+          text: t('app.edit', { defaultValue: 'Edit account' })
+        },
+        {
+          name: 'create',
+          text: t('app.create', { defaultValue: 'Create account' })
+        }
+      ]
+    };
+  }
+
+  static showEditState () {
+    return {
+      action: 'edit' as Actions,
+      hidden: []
+    };
+  }
+
+  static hideEditState () {
+    return {
+      action: 'create' as Actions,
+      hidden: ['edit']
+    };
+  }
+
+  static getDerivedStateFromProps ({ allAccounts = {} }: Props, { hidden }: State) {
+    const hasAddresses = Object.keys(allAccounts).length !== 0;
+
+    if (hidden.length === 0) {
+      return hasAddresses
+        ? null
+        : AccountsApp.hideEditState();
+    }
+
+    return hasAddresses
+      ? AccountsApp.showEditState()
+      : null;
+  }
 
   render () {
-    const { t } = this.props;
-    const { action } = this.state;
+    const { action, hidden, items } = this.state;
     const Component = Components[action];
-    const items = [
-      {
-        name: 'edit',
-        text: t('app.edit', { defaultValue: 'Edit account' })
-      },
-      {
-        name: 'create',
-        text: t('app.create', { defaultValue: 'Create account' })
-      }
-    ];
 
     return (
       <main className='accounts--App'>
         <header>
           <Tabs
             activeItem={action}
+            hidden={hidden}
             items={items}
             onChange={this.onMenuChange}
           />
@@ -61,13 +108,15 @@ class AccountsApp extends React.PureComponent<Props, State> {
     );
   }
 
-  onMenuChange = (action: Actions) => {
+  private onMenuChange = (action: Actions) => {
     this.setState({ action });
   }
 
-  selectEdit = (): void => {
+  private selectEdit = (): void => {
     this.setState({ action: 'edit' });
   }
 }
 
-export default translate(AccountsApp);
+export default withObservableBase(
+  accountObservable.subject, { propName: 'allAccounts' }
+)(translate(AccountsApp));
diff --git a/packages/app-democracy/package.json b/packages/app-democracy/package.json
index 0df5c8a18e..c3e0f01c3a 100644
--- a/packages/app-democracy/package.json
+++ b/packages/app-democracy/package.json
@@ -11,9 +11,9 @@
   "license": "ISC",
   "dependencies": {
     "@babel/runtime": "^7.0.0",
-    "@polkadot/storage": "^0.29.4",
+    "@polkadot/storage": "^0.29.7",
     "@polkadot/ui-react": "^0.20.16",
     "@polkadot/ui-react-rx": "^0.20.16",
-    "@polkadot/util-keyring": "^0.30.3"
+    "@polkadot/util-keyring": "^0.30.4"
   }
 }
diff --git a/packages/app-example/package.json b/packages/app-example/package.json
index 58437ab3c1..3c12b6171c 100644
--- a/packages/app-example/package.json
+++ b/packages/app-example/package.json
@@ -11,9 +11,9 @@
   "license": "ISC",
   "dependencies": {
     "@babel/runtime": "^7.0.0",
-    "@polkadot/storage": "^0.29.4",
+    "@polkadot/storage": "^0.29.7",
     "@polkadot/ui-react": "^0.20.16",
     "@polkadot/ui-react-rx": "^0.20.16",
-    "@polkadot/util-keyring": "^0.30.3"
+    "@polkadot/util-keyring": "^0.30.4"
   }
 }
diff --git a/packages/app-explorer/package.json b/packages/app-explorer/package.json
index 88a6c9c315..f1f5dd009f 100644
--- a/packages/app-explorer/package.json
+++ b/packages/app-explorer/package.json
@@ -11,8 +11,8 @@
   "license": "ISC",
   "dependencies": {
     "@babel/runtime": "^7.0.0",
-    "@polkadot/primitives": "^0.29.4",
+    "@polkadot/primitives": "^0.29.7",
     "@polkadot/ui-app": "^0.20.16",
-    "@polkadot/util-crypto": "^0.30.3"
+    "@polkadot/util-crypto": "^0.30.4"
   }
 }
diff --git a/packages/app-extrinsics/package.json b/packages/app-extrinsics/package.json
index 8094ed5b47..afb0aca444 100644
--- a/packages/app-extrinsics/package.json
+++ b/packages/app-extrinsics/package.json
@@ -11,7 +11,7 @@
   "license": "ISC",
   "dependencies": {
     "@babel/runtime": "^7.0.0",
-    "@polkadot/extrinsics": "^0.29.4",
+    "@polkadot/extrinsics": "^0.29.7",
     "@polkadot/ui-app": "^0.20.16",
     "@polkadot/ui-signer": "^0.20.16"
   }
diff --git a/packages/app-staking/package.json b/packages/app-staking/package.json
index 98f0ed7737..619225c92d 100644
--- a/packages/app-staking/package.json
+++ b/packages/app-staking/package.json
@@ -12,11 +12,11 @@
   "dependencies": {
     "@babel/runtime": "^7.0.0",
     "@polkadot/app-explorer": "^0.20.16",
-    "@polkadot/storage": "^0.29.4",
+    "@polkadot/storage": "^0.29.7",
     "@polkadot/ui-app": "^0.20.16",
     "@polkadot/ui-keyring": "^0.20.16",
     "@polkadot/ui-react": "^0.20.16",
     "@polkadot/ui-react-rx": "^0.20.16",
-    "@polkadot/util-keyring": "^0.30.3"
+    "@polkadot/util-keyring": "^0.30.4"
   }
 }
diff --git a/packages/ui-app/package.json b/packages/ui-app/package.json
index 692a15a4ef..08d655d071 100644
--- a/packages/ui-app/package.json
+++ b/packages/ui-app/package.json
@@ -11,8 +11,8 @@
   "license": "ISC",
   "dependencies": {
     "@babel/runtime": "^7.0.0",
-    "@polkadot/extrinsics": "^0.29.4",
-    "@polkadot/storage": "^0.29.4",
+    "@polkadot/extrinsics": "^0.29.7",
+    "@polkadot/storage": "^0.29.7",
     "@polkadot/ui-keyring": "^0.20.16",
     "@polkadot/ui-react": "^0.20.16",
     "@polkadot/ui-react-rx": "^0.20.16",
diff --git a/packages/ui-identicon/package.json b/packages/ui-identicon/package.json
index 2261372018..6b2f41fd4c 100644
--- a/packages/ui-identicon/package.json
+++ b/packages/ui-identicon/package.json
@@ -22,7 +22,7 @@
     "color": "^3.0.0"
   },
   "devDependencies": {
-    "@polkadot/util-crypto": "^0.30.3",
+    "@polkadot/util-crypto": "^0.30.4",
     "xmlserializer": "^0.6.1"
   }
 }
diff --git a/packages/ui-keyring/package.json b/packages/ui-keyring/package.json
index 16e0047f86..08bf80a3b5 100644
--- a/packages/ui-keyring/package.json
+++ b/packages/ui-keyring/package.json
@@ -12,7 +12,7 @@
   "dependencies": {
     "@babel/runtime": "^7.0.0",
     "@polkadot/ui-react": "^0.20.16",
-    "@polkadot/util-keyring": "^0.30.3",
+    "@polkadot/util-keyring": "^0.30.4",
     "store": "^2.0.12"
   },
   "peerDependencies": {
diff --git a/packages/ui-react-rx/package.json b/packages/ui-react-rx/package.json
index b6b0e2668f..8d94f4c60e 100644
--- a/packages/ui-react-rx/package.json
+++ b/packages/ui-react-rx/package.json
@@ -31,9 +31,9 @@
   "homepage": "https://github.com/polkadot-js/ui/tree/master/packages/ui-react-rx#readme",
   "dependencies": {
     "@babel/runtime": "^7.0.0",
-    "@polkadot/api-rx": "^0.29.4",
-    "@polkadot/extrinsics": "^0.29.4",
-    "@polkadot/storage": "^0.29.4",
+    "@polkadot/api-rx": "^0.29.7",
+    "@polkadot/extrinsics": "^0.29.7",
+    "@polkadot/storage": "^0.29.7",
     "rxjs-compat": "^6.3.2"
   },
   "devDependencies": {
diff --git a/packages/ui-react/package.json b/packages/ui-react/package.json
index 206c68c6bb..c9192d407d 100644
--- a/packages/ui-react/package.json
+++ b/packages/ui-react/package.json
@@ -15,7 +15,7 @@
     "polkadot-identicon": "^1.0.2"
   },
   "devDependencies": {
-    "@polkadot/util-keyring": "^0.30.3",
+    "@polkadot/util-keyring": "^0.30.4",
     "empty": "^0.10.1",
     "react": "^16.5.0",
     "react-dom": "^16.5.0"
diff --git a/packages/ui-signer/package.json b/packages/ui-signer/package.json
index ed65a23186..5bfd180a54 100644
--- a/packages/ui-signer/package.json
+++ b/packages/ui-signer/package.json
@@ -11,7 +11,7 @@
   "license": "ISC",
   "dependencies": {
     "@babel/runtime": "^7.0.0",
-    "@polkadot/extrinsics": "^0.29.4",
+    "@polkadot/extrinsics": "^0.29.7",
     "@polkadot/ui-app": "^0.20.16",
     "@polkadot/ui-keyring": "^0.20.16"
   },
diff --git a/yarn.lock b/yarn.lock
index a2346c7416..8e5d4618d0 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1348,59 +1348,59 @@
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/@nodelib/fs.stat/-/fs.stat-1.1.0.tgz#50c1e2260ac0ed9439a181de3725a0168d59c48a"
 
-"@polkadot/api-format@^0.29.4":
-  version "0.29.4"
-  resolved "https://registry.yarnpkg.com/@polkadot/api-format/-/api-format-0.29.4.tgz#407e8586e841b8c0a16e585a1e0c36a41f8f3cc3"
+"@polkadot/api-format@^0.29.7":
+  version "0.29.7"
+  resolved "https://registry.yarnpkg.com/@polkadot/api-format/-/api-format-0.29.7.tgz#f57681cb8a955fe2e5a64ecabe0b6d98a1e9bb41"
   dependencies:
     "@babel/runtime" "^7.0.0"
-    "@polkadot/jsonrpc" "^0.29.4"
-    "@polkadot/primitives" "^0.29.4"
-    "@polkadot/util" "^0.30.3"
-    "@polkadot/util-keyring" "^0.30.3"
+    "@polkadot/jsonrpc" "^0.29.7"
+    "@polkadot/primitives" "^0.29.7"
+    "@polkadot/util" "^0.30.4"
+    "@polkadot/util-keyring" "^0.30.4"
 
-"@polkadot/api-provider@^0.29.4":
-  version "0.29.4"
-  resolved "https://registry.yarnpkg.com/@polkadot/api-provider/-/api-provider-0.29.4.tgz#bd3d87e503486c7cd340c485c6de78a8794c5206"
+"@polkadot/api-provider@^0.29.7":
+  version "0.29.7"
+  resolved "https://registry.yarnpkg.com/@polkadot/api-provider/-/api-provider-0.29.7.tgz#7817e7e40c71fa8c90ad924739e6f06674e1aeb6"
   dependencies:
     "@babel/runtime" "^7.0.0"
-    "@polkadot/storage" "^0.29.4"
-    "@polkadot/util" "^0.30.3"
-    "@polkadot/util-crypto" "^0.30.3"
-    "@polkadot/util-keyring" "^0.30.3"
+    "@polkadot/storage" "^0.29.7"
+    "@polkadot/util" "^0.30.4"
+    "@polkadot/util-crypto" "^0.30.4"
+    "@polkadot/util-keyring" "^0.30.4"
     "@types/nock" "^9.1.3"
     eventemitter3 "^3.1.0"
     isomorphic-fetch "^2.2.1"
     websocket "^1.0.25"
 
-"@polkadot/api-rx@^0.29.4":
-  version "0.29.4"
-  resolved "https://registry.yarnpkg.com/@polkadot/api-rx/-/api-rx-0.29.4.tgz#a88d26caa2011db5583d400750417a9791a94a0e"
+"@polkadot/api-rx@^0.29.7":
+  version "0.29.7"
+  resolved "https://registry.yarnpkg.com/@polkadot/api-rx/-/api-rx-0.29.7.tgz#0bb0d2352dd33090e20892f6358944a021efe0f1"
   dependencies:
     "@babel/runtime" "^7.0.0"
-    "@polkadot/api" "^0.29.4"
-    "@polkadot/api-provider" "^0.29.4"
+    "@polkadot/api" "^0.29.7"
+    "@polkadot/api-provider" "^0.29.7"
     "@types/rx" "^4.1.1"
     rxjs "^6.3.2"
 
-"@polkadot/api@^0.29.4":
-  version "0.29.4"
-  resolved "https://registry.yarnpkg.com/@polkadot/api/-/api-0.29.4.tgz#00d3eab5b0c65b206ad7476a92c33b5017bbbc2c"
+"@polkadot/api@^0.29.7":
+  version "0.29.7"
+  resolved "https://registry.yarnpkg.com/@polkadot/api/-/api-0.29.7.tgz#4311f0743b1538e570cb6ea67f68e52197b0192a"
   dependencies:
     "@babel/runtime" "^7.0.0"
-    "@polkadot/api-format" "^0.29.4"
-    "@polkadot/api-provider" "^0.29.4"
-    "@polkadot/jsonrpc" "^0.29.4"
-    "@polkadot/params" "^0.29.4"
-    "@polkadot/util" "^0.30.3"
+    "@polkadot/api-format" "^0.29.7"
+    "@polkadot/api-provider" "^0.29.7"
+    "@polkadot/jsonrpc" "^0.29.7"
+    "@polkadot/params" "^0.29.7"
+    "@polkadot/util" "^0.30.4"
 
-"@polkadot/dev-react@^0.20.20":
-  version "0.20.20"
-  resolved "https://registry.yarnpkg.com/@polkadot/dev-react/-/dev-react-0.20.20.tgz#ecc379942e559ba8ab597b79f6c8ed0dd0f2511f"
+"@polkadot/dev-react@^0.20.21":
+  version "0.20.21"
+  resolved "https://registry.yarnpkg.com/@polkadot/dev-react/-/dev-react-0.20.21.tgz#abd619c606b8e82ea23f7f943a5fec902f330eff"
   dependencies:
     "@babel/core" "^7.0.0"
     "@babel/plugin-syntax-dynamic-import" "^7.0.0"
     "@babel/preset-react" "^7.0.0"
-    "@polkadot/dev" "^0.20.20"
+    "@polkadot/dev" "^0.20.21"
     "@types/react-dom" "^16.0.7"
     browserslist "^4.1.1"
     eslint-config-standard-jsx "^6.0.2"
@@ -1415,9 +1415,9 @@
     webpack-cli "^3.1.0"
     webpack-serve "^2.0.1"
 
-"@polkadot/dev@^0.20.20":
-  version "0.20.20"
-  resolved "https://registry.yarnpkg.com/@polkadot/dev/-/dev-0.20.20.tgz#582b620502103a81536e74d9e045087d6ac73636"
+"@polkadot/dev@^0.20.21":
+  version "0.20.21"
+  resolved "https://registry.yarnpkg.com/@polkadot/dev/-/dev-0.20.21.tgz#81d707d5aeb4b32e22fea1e1653ab238c77eefeb"
   dependencies:
     "@babel/cli" "^7.0.0"
     "@babel/core" "^7.0.0"
@@ -1451,6 +1451,7 @@
     eslint-plugin-standard "^4.0.0"
     gitbook-cli "^2.3.2"
     gitbook-plugin-asciidoc-include "^0.1.9"
+    gitbook-plugin-include-codeblock "^3.2.2"
     jest "^23.5.0"
     lerna "^3.3.0"
     makeshift "^1.1.0"
@@ -1463,96 +1464,96 @@
     typedoc-plugin-markdown "^1.1.15"
     typescript "^3.0.1"
 
-"@polkadot/extrinsics@^0.29.4":
-  version "0.29.4"
-  resolved "https://registry.yarnpkg.com/@polkadot/extrinsics/-/extrinsics-0.29.4.tgz#187609040067037afa11620645c08ed5f25c9318"
+"@polkadot/extrinsics@^0.29.7":
+  version "0.29.7"
+  resolved "https://registry.yarnpkg.com/@polkadot/extrinsics/-/extrinsics-0.29.7.tgz#dc8fb0389e9a5c01b483ff2b3c7d9886ee174d78"
   dependencies:
     "@babel/runtime" "^7.0.0"
-    "@polkadot/params" "^0.29.4"
-    "@polkadot/primitives" "^0.29.4"
-    "@polkadot/util" "^0.30.3"
+    "@polkadot/params" "^0.29.7"
+    "@polkadot/primitives" "^0.29.7"
+    "@polkadot/util" "^0.30.4"
 
-"@polkadot/jsonrpc@^0.29.4":
-  version "0.29.4"
-  resolved "https://registry.yarnpkg.com/@polkadot/jsonrpc/-/jsonrpc-0.29.4.tgz#6d1639232253dff00a1cfe889ecb690553642609"
+"@polkadot/jsonrpc@^0.29.7":
+  version "0.29.7"
+  resolved "https://registry.yarnpkg.com/@polkadot/jsonrpc/-/jsonrpc-0.29.7.tgz#1ef561490e6ff6ac4c5df80771d9057979f042c8"
   dependencies:
-    "@polkadot/params" "^0.29.4"
+    "@polkadot/params" "^0.29.7"
     babel-runtime "^6.26.0"
 
-"@polkadot/params@^0.29.4":
-  version "0.29.4"
-  resolved "https://registry.yarnpkg.com/@polkadot/params/-/params-0.29.4.tgz#96624af8b6aadcc65e4535afa8472ea6b1e6def7"
+"@polkadot/params@^0.29.7":
+  version "0.29.7"
+  resolved "https://registry.yarnpkg.com/@polkadot/params/-/params-0.29.7.tgz#40dfa268dae0ca2aca7ca106046f5f0c5008a520"
   dependencies:
     "@babel/runtime" "^7.0.0"
-    "@polkadot/extrinsics" "^0.29.4"
-    "@polkadot/params" "^0.29.4"
-    "@polkadot/primitives" "^0.29.4"
-    "@polkadot/util" "^0.30.3"
-    "@polkadot/util-keyring" "^0.30.3"
+    "@polkadot/extrinsics" "^0.29.7"
+    "@polkadot/params" "^0.29.7"
+    "@polkadot/primitives" "^0.29.7"
+    "@polkadot/util" "^0.30.4"
+    "@polkadot/util-keyring" "^0.30.4"
 
-"@polkadot/primitives@^0.29.4":
-  version "0.29.4"
-  resolved "https://registry.yarnpkg.com/@polkadot/primitives/-/primitives-0.29.4.tgz#d8cc756772269e91d207ecbf913d3a4cea98d403"
+"@polkadot/primitives@^0.29.7":
+  version "0.29.7"
+  resolved "https://registry.yarnpkg.com/@polkadot/primitives/-/primitives-0.29.7.tgz#da466522a9d45c8c02226ae20a9c37a461ec731f"
   dependencies:
     "@babel/runtime" "^7.0.0"
-    "@polkadot/trie-hash" "^0.30.3"
-    "@polkadot/util" "^0.30.3"
+    "@polkadot/trie-hash" "^0.30.4"
+    "@polkadot/util" "^0.30.4"
 
-"@polkadot/storage@^0.29.4":
-  version "0.29.4"
-  resolved "https://registry.yarnpkg.com/@polkadot/storage/-/storage-0.29.4.tgz#561d2c1e3c9f7dec6d07910592c73be8311a10a4"
+"@polkadot/storage@^0.29.7":
+  version "0.29.7"
+  resolved "https://registry.yarnpkg.com/@polkadot/storage/-/storage-0.29.7.tgz#c7b04084b10b81f890bcb421d590322c2e5423f7"
   dependencies:
     "@babel/runtime" "^7.0.0"
-    "@polkadot/params" "^0.29.4"
-    "@polkadot/primitives" "^0.29.4"
-    "@polkadot/util" "^0.30.3"
-    "@polkadot/util-crypto" "^0.30.3"
-    "@polkadot/util-keyring" "^0.30.3"
+    "@polkadot/params" "^0.29.7"
+    "@polkadot/primitives" "^0.29.7"
+    "@polkadot/util" "^0.30.4"
+    "@polkadot/util-crypto" "^0.30.4"
+    "@polkadot/util-keyring" "^0.30.4"
 
-"@polkadot/trie-hash@^0.30.3":
-  version "0.30.3"
-  resolved "https://registry.yarnpkg.com/@polkadot/trie-hash/-/trie-hash-0.30.3.tgz#4eee3f78ff38f74e7f09ef1e41778ddb0da0f509"
+"@polkadot/trie-hash@^0.30.4":
+  version "0.30.4"
+  resolved "https://registry.yarnpkg.com/@polkadot/trie-hash/-/trie-hash-0.30.4.tgz#eb2520b45cbb634000319e8420623a992c4fd56a"
   dependencies:
     "@babel/runtime" "^7.0.0"
-    "@polkadot/util" "^0.30.3"
-    "@polkadot/util-crypto" "^0.30.3"
-    "@polkadot/util-rlp" "^0.30.3"
+    "@polkadot/util" "^0.30.4"
+    "@polkadot/util-crypto" "^0.30.4"
+    "@polkadot/util-rlp" "^0.30.4"
 
-"@polkadot/ts@^0.1.29":
-  version "0.1.29"
-  resolved "https://registry.yarnpkg.com/@polkadot/ts/-/ts-0.1.29.tgz#e1a4d4e59cf52f3d82173725b7727eb2c6ab6834"
+"@polkadot/ts@^0.1.30":
+  version "0.1.30"
+  resolved "https://registry.yarnpkg.com/@polkadot/ts/-/ts-0.1.30.tgz#d6d1498a5597e09de88f6117663bcf842040c801"
 
-"@polkadot/util-crypto@^0.30.3":
-  version "0.30.3"
-  resolved "https://registry.yarnpkg.com/@polkadot/util-crypto/-/util-crypto-0.30.3.tgz#83f0080fe953a856acef877a5bab113c5a61ae79"
+"@polkadot/util-crypto@^0.30.4":
+  version "0.30.4"
+  resolved "https://registry.yarnpkg.com/@polkadot/util-crypto/-/util-crypto-0.30.4.tgz#d2e23fd1f661200771c10381f4b8ef20d337c1a8"
   dependencies:
     "@babel/runtime" "^7.0.0"
-    "@polkadot/util" "^0.30.3"
+    "@polkadot/util" "^0.30.4"
     blakejs "^1.1.0"
     js-sha3 "^0.8.0"
     tweetnacl "^1.0.0"
     xxhashjs "^0.2.2"
 
-"@polkadot/util-keyring@^0.30.3":
-  version "0.30.3"
-  resolved "https://registry.yarnpkg.com/@polkadot/util-keyring/-/util-keyring-0.30.3.tgz#e8547f5b32caac1c79b80c3dc028108e36720251"
+"@polkadot/util-keyring@^0.30.4":
+  version "0.30.4"
+  resolved "https://registry.yarnpkg.com/@polkadot/util-keyring/-/util-keyring-0.30.4.tgz#97aa4e442f38ce0afe7f54b2f0c537b184031b7c"
   dependencies:
     "@babel/runtime" "^7.0.0"
-    "@polkadot/util" "^0.30.3"
-    "@polkadot/util-crypto" "^0.30.3"
+    "@polkadot/util" "^0.30.4"
+    "@polkadot/util-crypto" "^0.30.4"
     "@types/bs58" "^3.0.30"
     bs58 "^4.0.1"
 
-"@polkadot/util-rlp@^0.30.3":
-  version "0.30.3"
-  resolved "https://registry.yarnpkg.com/@polkadot/util-rlp/-/util-rlp-0.30.3.tgz#a49b444425819243021bcd395e3b67fa628abfed"
+"@polkadot/util-rlp@^0.30.4":
+  version "0.30.4"
+  resolved "https://registry.yarnpkg.com/@polkadot/util-rlp/-/util-rlp-0.30.4.tgz#3f08ad08e0f47febeacf9225c4615f18f6e450b7"
   dependencies:
     "@babel/runtime" "^7.0.0"
-    "@polkadot/util" "^0.30.3"
+    "@polkadot/util" "^0.30.4"
 
-"@polkadot/util@^0.30.3":
-  version "0.30.3"
-  resolved "https://registry.yarnpkg.com/@polkadot/util/-/util-0.30.3.tgz#c7d8ea9e527332e4a36946b7524f3b1b18b7804f"
+"@polkadot/util@^0.30.4":
+  version "0.30.4"
+  resolved "https://registry.yarnpkg.com/@polkadot/util/-/util-0.30.4.tgz#f3033b5e7e8a2af5a69b4b9f2ea33287da76d045"
   dependencies:
     "@babel/runtime" "^7.0.0"
     "@types/bn.js" "^4.11.1"
@@ -2372,7 +2373,7 @@ async-some@~1.0.2:
   dependencies:
     dezalgo "^1.0.2"
 
-async@2.6.1, async@^2.0.1, async@^2.1.4, async@^2.3.0:
+async@2.6.1, async@^2.0.1, async@^2.1.4, async@^2.3.0, async@^2.5.0:
   version "2.6.1"
   resolved "https://registry.yarnpkg.com/async/-/async-2.6.1.tgz#b245a23ca71930044ec53fa46aa00a3e87c6a610"
   dependencies:
@@ -2382,6 +2383,10 @@ async@^1.4.0, async@~1.5.2:
   version "1.5.2"
   resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
 
+async@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/async/-/async-1.0.0.tgz#f8fc04ca3a13784ade9e1641af98578cfbd647a9"
+
 asynckit@^0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/asynckit/-/asynckit-0.4.0.tgz#c79ed97f7f34cb8f2ba1bc9790bcc366474b4b79"
@@ -3360,6 +3365,10 @@ colors@0.5.x:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/colors/-/colors-0.5.1.tgz#7d0023eaeb154e8ee9fce75dcb923d0ed1667774"
 
+colors@1.0.x:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/colors/-/colors-1.0.3.tgz#0433f44d809680fdeb60ed260f1b0c262e82a40b"
+
 columnify@^1.5.4, columnify@~1.5.4:
   version "1.5.4"
   resolved "https://registry.yarnpkg.com/columnify/-/columnify-1.5.4.tgz#4737ddf1c7b69a8a7c340570782e947eec8e78bb"
@@ -3395,6 +3404,10 @@ commander@~2.13.0:
   version "2.13.0"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.13.0.tgz#6964bca67685df7c1f1430c584f07d7597885b9c"
 
+commander@~2.17.1:
+  version "2.17.1"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.17.1.tgz#bd77ab7de6de94205ceacc72f1716d29f20a77bf"
+
 commondir@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/commondir/-/commondir-1.0.1.tgz#ddd800da0c66127393cca5950ea968a3aaf1253b"
@@ -3826,6 +3839,10 @@ currently-unhandled@^0.4.1:
   dependencies:
     array-find-index "^1.0.1"
 
+cycle@1.0.x:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/cycle/-/cycle-1.0.3.tgz#21e80b2be8580f98b468f379430662b046c34ad2"
+
 cyclist@~0.2.2:
   version "0.2.2"
   resolved "https://registry.yarnpkg.com/cyclist/-/cyclist-0.2.2.tgz#1b33792e11e914a2fd6d6ed6447464444e5fa640"
@@ -4775,6 +4792,10 @@ extsprintf@^1.2.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/extsprintf/-/extsprintf-1.4.0.tgz#e2689f8f356fad62cca65a3a91c5df5f9551692f"
 
+eyes@0.1.x:
+  version "0.1.8"
+  resolved "https://registry.yarnpkg.com/eyes/-/eyes-0.1.8.tgz#62cf120234c683785d902348a800ef3e0cc20bc0"
+
 fast-deep-equal@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-1.1.0.tgz#c053477817c86b51daa853c81e059b733d023614"
@@ -5285,6 +5306,16 @@ gitbook-plugin-asciidoc-include@^0.1.9:
   dependencies:
     q "1.4.1"
 
+gitbook-plugin-include-codeblock@^3.2.2:
+  version "3.2.2"
+  resolved "https://registry.yarnpkg.com/gitbook-plugin-include-codeblock/-/gitbook-plugin-include-codeblock-3.2.2.tgz#88e8779258cfb151dc54130df0b24ec166e3fa38"
+  dependencies:
+    entities "^1.1.1"
+    handlebars "^4.0.5"
+    language-map "^1.1.1"
+    meow "^4.0.0"
+    winston-color "^1.0.0"
+
 gitconfiglocal@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/gitconfiglocal/-/gitconfiglocal-1.0.0.tgz#41d045f3851a5ea88f03f24ca1c6178114464b9b"
@@ -5487,6 +5518,16 @@ handlebars@^4.0.2, handlebars@^4.0.3, handlebars@^4.0.6:
   optionalDependencies:
     uglify-js "^2.6"
 
+handlebars@^4.0.5:
+  version "4.0.12"
+  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.0.12.tgz#2c15c8a96d46da5e266700518ba8cb8d919d5bc5"
+  dependencies:
+    async "^2.5.0"
+    optimist "^0.6.1"
+    source-map "^0.6.1"
+  optionalDependencies:
+    uglify-js "^3.1.4"
+
 har-schema@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/har-schema/-/har-schema-1.0.5.tgz#d263135f43307c02c602afc8fe95970c0151369e"
@@ -6379,7 +6420,7 @@ isomorphic-fetch@^2.1.1, isomorphic-fetch@^2.2.1:
     node-fetch "^1.0.1"
     whatwg-fetch ">=0.10.0"
 
-isstream@~0.1.2:
+isstream@0.1.x, isstream@~0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/isstream/-/isstream-0.1.2.tgz#47e63f7af55afa6f92e1500e690eb8b8529c099a"
 
@@ -7037,6 +7078,10 @@ koa@^2.4.1:
     type-is "^1.6.16"
     vary "^1.1.2"
 
+language-map@^1.1.1:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/language-map/-/language-map-1.3.0.tgz#dd32bf34abf85e40ba1833e0c8f3d45e76c0a8f7"
+
 latest-version@^3.0.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/latest-version/-/latest-version-3.1.0.tgz#a205383fea322b33b5ae3b18abee0dc2f356ee15"
@@ -10991,6 +11036,10 @@ ssri@^6.0.0:
   version "6.0.0"
   resolved "https://registry.yarnpkg.com/ssri/-/ssri-6.0.0.tgz#fc21bfc90e03275ac3e23d5a42e38b8a1cbc130d"
 
+stack-trace@0.0.x:
+  version "0.0.10"
+  resolved "https://registry.yarnpkg.com/stack-trace/-/stack-trace-0.0.10.tgz#547c70b347e8d32b4e108ea1a2a159e5fdde19c0"
+
 stack-utils@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/stack-utils/-/stack-utils-1.0.1.tgz#d4f33ab54e8e38778b0ca5cfd3b3afb12db68620"
@@ -11738,6 +11787,13 @@ uglify-js@^2.6:
   optionalDependencies:
     uglify-to-browserify "~1.0.0"
 
+uglify-js@^3.1.4:
+  version "3.4.9"
+  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.4.9.tgz#af02f180c1207d76432e473ed24a28f4a782bae3"
+  dependencies:
+    commander "~2.17.1"
+    source-map "~0.6.1"
+
 uglify-to-browserify@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/uglify-to-browserify/-/uglify-to-browserify-1.0.2.tgz#6e0924d6bda6b5afe349e39a6d632850a0f882b7"
@@ -12335,6 +12391,23 @@ window-size@0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/window-size/-/window-size-0.1.0.tgz#5438cd2ea93b202efa3a19fe8887aee7c94f9c9d"
 
+winston-color@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/winston-color/-/winston-color-1.0.0.tgz#7dcf28fded016585247f2aadc10ce8aafbe1fac6"
+  dependencies:
+    winston "^2.1.1"
+
+winston@^2.1.1:
+  version "2.4.4"
+  resolved "https://registry.yarnpkg.com/winston/-/winston-2.4.4.tgz#a01e4d1d0a103cf4eada6fc1f886b3110d71c34b"
+  dependencies:
+    async "~1.0.0"
+    colors "1.0.x"
+    cycle "1.0.x"
+    eyes "0.1.x"
+    isstream "0.1.x"
+    stack-trace "0.0.x"
+
 wordwrap@0.0.2:
   version "0.0.2"
   resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.2.tgz#b79669bb42ecb409f83d583cad52ca17eaa1643f"