Fix menu icon.
Fix menu icon.

shubhamvashisht/hawkular-android-client,danielpassos/hawkular-android-client,pilhuhn/hawkular-android-client,hawkular/hawkular-android-client,pg301/hawkular-android-client,sauravvishal8797/hawkular-android-client,anuj1708/hawkular-android-buff,anuj1708/hawkular-android-client