Fix first channel load scrolling issue on Windows and iOS and add emoji to RHS.

web/react/components/rhs_comment.jsx

@@ -56,6 +56,7 @@ export default class RhsComment extends React.Component {
     }
     parseEmojis() {
         twemoji.parse(React.findDOMNode(this), {size: Constants.EMOJI_SIZE});
+        global.window.emojify.run(React.findDOMNode(this.refs.message_holder));
     }
     componentDidMount() {
         this.parseEmojis();
@@ -208,6 +209,7 @@ export default class RhsComment extends React.Component {
                         <p className={postClass}>
                             {loading}
                             <div
+                                ref='message_holder'
                                 onClick={TextFormatting.handleClick}
                                 dangerouslySetInnerHTML={{__html: TextFormatting.formatText(post.message)}}
                             />