Merge branch 'v2.2.x-release' of github.com:bigbluebutton/bigbluebutton into merge-Jan30

.../src/main/scala/org/bigbluebutton/core/models/Polls.scala

...-web/src/main/java/org/bigbluebutton/api/domain/User.java

...imports/api/annotations/server/handlers/whiteboardSend.js

bigbluebutton-html5/imports/api/audio/client/bridge/sip.js

...mports/api/group-chat-msg/server/modifiers/startTyping.js

.../components/actions-bar/quick-poll-dropdown/component.jsx

bigbluebutton-html5/imports/ui/components/audio/service.js

...ml5/imports/ui/components/chat/message-form/container.jsx

...rts/ui/components/nav-bar/talking-indicator/container.jsx

bigbluebutton-html5/imports/ui/components/poll/component.jsx

bigbluebutton-html5/imports/ui/components/poll/service.js

...utton-html5/imports/ui/components/presentation/service.js

...ui/components/settings/submenus/application/component.jsx

...n-html5/imports/ui/components/video-preview/component.jsx

...tton-html5/imports/ui/components/video-preview/service.js

...ton-html5/imports/ui/components/video-provider/service.js

...rts/ui/components/video-provider/video-list/component.jsx

...s/video-provider/video-list/video-list-item/component.jsx

...s/ui/components/whiteboard/annotations/poll/component.jsx

...iteboard/whiteboard-overlay/cursor-listener/component.jsx