Fix #475 - add space after autocomplete

app/assets/javascripts/components/features/account/index.jsx

@@ -43,7 +43,8 @@ const Account = React.createClass({
     params: React.PropTypes.object.isRequired,
     dispatch: React.PropTypes.func.isRequired,
     account: ImmutablePropTypes.map,
-    me: React.PropTypes.number.isRequired
+    me: React.PropTypes.number.isRequired,
+    children: React.PropTypes.node
   },
 
   mixins: [PureRenderMixin],

app/assets/javascripts/components/reducers/compose.jsx

@@ -82,7 +82,7 @@ function removeMedia(state, mediaId) {
 
 const insertSuggestion = (state, position, token, completion) => {
   return state.withMutations(map => {
-    map.update('text', oldText => `${oldText.slice(0, position)}${completion}${oldText.slice(position + token.length)}`);
+    map.update('text', oldText => `${oldText.slice(0, position)}${completion} ${oldText.slice(position + token.length)}`);
     map.set('suggestion_token', null);
     map.update('suggestions', Immutable.List(), list => list.clear());
   });