Merge pull request #3034 from lfzawacki/user-voice-plus-emojis

bigbluebutton-html5/app/client/globals.js

bigbluebutton-html5/app/client/main.html

bigbluebutton-html5/app/client/views/users/user_item.html

...ebutton-html5/app/client/views/whiteboard/whiteboard.html

...luebutton-html5/app/client/views/whiteboard/whiteboard.js

bigbluebutton-html5/app/server/collection_methods/users.js

bigbluebutton-html5/app/server/server.js