PLT-3077 Add group messaging (#5489)

* Implement server changes for group messaging

* Majority of client-side implementation

* Some server updates

* Added new React multiselect component

* Fix style issues

* Add custom renderer for options

* Fix model test

* Update ENTER functionality for multiselect control

* Remove buttons from multiselect UI control

* Updating group messaging UI (#5524)

* Move filter controls up a component level

* Scroll with arrow keys

* Updating mobile layout for multiselect (#5534)

* Fix race condition when backspacing quickly

* Hidden or new GMs show up for regular messages

* Add overriding of number remaining text

* Add UI filtering for team if config setting set

* Add icon to channel switcher and class prop to status icon

* Minor updates per feedback

* Improving group messaging UI (#5563)

* UX changes per feedback

* Update email for group messages

* UI fixes for group messaging (#5587)

* Fix missing localization string

* Add maximum users message when adding members to GM

* Fix input clearing on Android

* Updating group messaging UI (#5603)

* Updating UI for group messaging (#5604)

webapp/components/status_icon.jsx

@@ -33,7 +33,7 @@ export default class StatusIcon extends React.Component {
 
         return (
             <span
-                className='status'
+                className={'status ' + this.props.className}
                 dangerouslySetInnerHTML={{__html: statusIcon}}
             />
         );
@@ -41,7 +41,12 @@ export default class StatusIcon extends React.Component {
 
 }
 
+StatusIcon.defaultProps = {
+    className: ''
+};
+
 StatusIcon.propTypes = {
     status: React.PropTypes.string,
+    className: React.PropTypes.string,
     type: React.PropTypes.string
 };