replace imports of q with bluebird

update `package.json`

```
find src test -name '*.js' |
   xargs perl -i -pe 'if (/require\(.[qQ].\)/) { $_ = "import Promise from '\''bluebird'\'';\n"; }'

find src test -name '*.js' |
   xargs perl -i -pe 'if (/import [qQ]/) { $_ = "import Promise from '\''bluebird'\'';\n"; }'
```

src/components/views/rooms/Autocomplete.js

@@ -5,7 +5,7 @@ import flatMap from 'lodash/flatMap';
 import isEqual from 'lodash/isEqual';
 import sdk from '../../../index';
 import type {Completion} from '../../../autocomplete/Autocompleter';
-import Q from 'q';
+import Promise from 'bluebird';
 import UserSettingsStore from '../../../UserSettingsStore';
 
 import {getCompletions} from '../../../autocomplete/Autocompleter';

src/components/views/rooms/MemberList.js

@@ -17,7 +17,7 @@ var React = require('react');
 import { _t } from '../../../languageHandler';
 var classNames = require('classnames');
 var Matrix = require("matrix-js-sdk");
-var q = require('q');
+import Promise from 'bluebird';
 var MatrixClientPeg = require("../../../MatrixClientPeg");
 var Modal = require("../../../Modal");
 var Entities = require("../../../Entities");

src/components/views/rooms/MessageComposerInput.js

@@ -22,7 +22,7 @@ import {Editor, EditorState, RichUtils, CompositeDecorator,
 
 import classNames from 'classnames';
 import escape from 'lodash/escape';
-import Q from 'q';
+import Promise from 'bluebird';
 
 import MatrixClientPeg from '../../../MatrixClientPeg';
 import type {MatrixClient} from 'matrix-js-sdk/lib/matrix';

src/components/views/rooms/RoomSettings.js

@@ -15,7 +15,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-import q from 'q';
+import Promise from 'bluebird';
 import React from 'react';
 import { _t, _tJsx } from '../../../languageHandler';
 import MatrixClientPeg from '../../../MatrixClientPeg';