Merge pull request #4785 from ritzalam/synch-with-v2.0

...bluebutton/core/apps/polls/HidePollResultReqMsgHdlr.scala

...n/scala/org/bigbluebutton/core/apps/polls/PollApp2x.scala

...gbluebutton/core/apps/polls/RespondToPollReqMsgHdlr.scala

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

...ton/core/pubsub/senders/ReceivedJsonMsgHandlerActor.scala

...uebutton/core/record/events/AbstractPollRecordEvent.scala

...luebutton/core/record/events/PollStartedRecordEvent.scala

...luebutton/core/record/events/PollStoppedRecordEvent.scala

...n/core/record/events/UserRespondedToPollRecordEvent.scala

...n/scala/org/bigbluebutton/core/running/MeetingActor.scala

.../org/bigbluebutton/core2/FromAkkaAppsMsgSenderActor.scala

...org/bigbluebutton/endpoint/redis/RedisRecorderActor.scala

...main/scala/org/bigbluebutton/common2/msgs/PollsMsgs.scala

.../main/java/org/bigbluebutton/api/ParamsProcessorUtil.java

bigbluebutton-client/locale/en_US/bbbResources.properties

bigbluebutton-client/resources/prod/BigBlueButton.html

...client/src/org/bigbluebutton/main/events/ShortcutEvent.as

...rc/org/bigbluebutton/main/views/AudioSelectionWindow.mxml

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

...gbluebutton/modules/polling/events/ShowPollResultEvent.as