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/dialogs/ChatInviteDialog.js

@@ -23,7 +23,7 @@ import MatrixClientPeg from '../../../MatrixClientPeg';
 import DMRoomMap from '../../../utils/DMRoomMap';
 import Modal from '../../../Modal';
 import AccessibleButton from '../elements/AccessibleButton';
-import q from 'q';
+import Promise from 'bluebird';
 import dis from '../../../dispatcher';
 
 const TRUNCATE_QUERY_LIST = 40;