Added comments for the force update functions

web/react/components/post_list.jsx

@@ -196,6 +196,7 @@ module.exports = React.createClass({
             }
             this.setState(newState);
         } else {
+            // Updates the timestamp on each post
             this.forceUpdate()
         }
     },

web/react/components/sidebar_right.jsx

@@ -24,6 +24,7 @@ module.exports = React.createClass({
         UserStore.removeStatusesChangeListener(this._onChange);
     },
     _onChange: function() {
+        // Updates the timestamp on each post
         this.forceUpdate();
     },
     _onSelectedChange: function(from_search) {