Merge remote-tracking branch 'upstream/v2.0.x-release' into audio-refactor

...igbluebutton/core/apps/breakout/BreakoutHdlrHelpers.scala

...c/main/scala/org/bigbluebutton/core2/AnalyticsActor.scala

...org/bigbluebutton/api2/bus/ReceivedJsonMsgHdlrActor.scala

...g/bigbluebutton/api2/meeting/OldMeetingMsgHdlrActor.scala

bigbluebutton-client/branding/default/style/css/V2Theme.css

bigbluebutton-client/build.xml

bigbluebutton-client/locale/am/bbbResources.properties

bigbluebutton-client/locale/am_ET/bbbResources.properties

bigbluebutton-client/locale/ar/bbbResources.properties

bigbluebutton-client/locale/ar_EG/bbbResources.properties

bigbluebutton-client/locale/ar_SA/bbbResources.properties

bigbluebutton-client/locale/az_AZ/bbbResources.properties

bigbluebutton-client/locale/be_BY/bbbResources.properties

bigbluebutton-client/locale/bg_BG/bbbResources.properties

bigbluebutton-client/locale/bn_IN/bbbResources.properties

bigbluebutton-client/locale/bs_BA/bbbResources.properties

bigbluebutton-client/locale/ca_ES/bbbResources.properties

bigbluebutton-client/locale/cs_CZ/bbbResources.properties

bigbluebutton-client/locale/cy_GB/bbbResources.properties

bigbluebutton-client/locale/da_DK/bbbResources.properties