Promote reply button up to message action bar

This moves the reply action out of the existing options menu and up to the
message action bar for easier access.

src/components/views/context_menus/MessageContextMenu.js

@@ -201,14 +201,6 @@ module.exports = React.createClass({
         this.closeMenu();
     },
 
-    onReplyClick: function() {
-        dis.dispatch({
-            action: 'reply_to_event',
-            event: this.props.mxEvent,
-        });
-        this.closeMenu();
-    },
-
     onCollapseReplyThreadClick: function() {
         this.props.collapseReplyThread();
         this.closeMenu();
@@ -226,7 +218,6 @@ module.exports = React.createClass({
         let unhidePreviewButton;
         let externalURLButton;
         let quoteButton;
-        let replyButton;
         let collapseReplyThread;
 
         // status is SENT before remote-echo, null after
@@ -265,12 +256,6 @@ module.exports = React.createClass({
                     </div>
                 );
 
-                replyButton = (
-                    <div className="mx_MessageContextMenu_field" onClick={this.onReplyClick}>
-                        { _t('Reply') }
-                    </div>
-                );
-
                 if (this.state.canPin) {
                     pinButton = (
                         <div className="mx_MessageContextMenu_field" onClick={this.onPinClick}>
@@ -368,7 +353,6 @@ module.exports = React.createClass({
                 { unhidePreviewButton }
                 { permalinkButton }
                 { quoteButton }
-                { replyButton }
                 { externalURLButton }
                 { collapseReplyThread }
                 { e2eInfo }