Merge branch 'master' of https://github.com/bigbluebutton/bigbluebutton into 2.2-Edge-support-01

...tton/core/apps/groupchats/CreateGroupChatReqMsgHdlr.scala

...on/core/apps/groupchats/SendGroupChatMessageMsgHdlr.scala

.../org/bigbluebutton/modules/chat/views/ChatOptionsTab.mxml

...ent/src/org/bigbluebutton/modules/chat/views/ChatTab.mxml

...nt/src/org/bigbluebutton/modules/chat/views/ChatView.mxml

...rg/bigbluebutton/modules/polling/views/QuickPollButton.as

...uebutton/modules/present/ui/views/PresentationWindow.mxml

bigbluebutton-config/bin/bbb-conf

...html5/imports/api/meetings/server/modifiers/addMeeting.js

...utton-html5/imports/api/polls/server/modifiers/addPoll.js

.../ui/components/actions-bar/actions-dropdown/component.jsx

...ton-html5/imports/ui/components/actions-bar/component.jsx

...ton-html5/imports/ui/components/actions-bar/container.jsx

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

...button-html5/imports/ui/components/actions-bar/service.js

...l5/imports/ui/components/audio/audio-controls/styles.scss

...html5/imports/ui/components/audio/echo-test/component.jsx

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

...tton-html5/imports/ui/components/error-screen/styles.scss

...imports/ui/components/external-video-player/component.jsx