Merge pull request #3256 from ritzalam/fix-screenshare-autoreconnect

...rg/bigbluebutton/app/screenshare/red5/Red5AppService.java

...tton/modules/screenshare/managers/PublishWindowManager.as

...button/modules/screenshare/managers/ScreenshareManager.as

...utton/modules/screenshare/managers/ViewerWindowManager.as

...gbluebutton/modules/screenshare/model/ScreenshareModel.as

...button/modules/screenshare/services/ScreenshareService.as

...luebutton/modules/screenshare/services/red5/Connection.as

...screenshare/view/components/ScreensharePublishWindow.mxml

...es/screenshare/view/components/ScreenshareViewWindow.mxml