Merge pull request #5187 from capilkey/2.1-smallfixes-1

clients/flash/air-client/src/css/hdpi.css

clients/flash/air-client/src/css/ldpi.css

clients/flash/air-client/src/css/mdpi.css

clients/flash/air-client/src/css/xhdpi.css

clients/flash/air-client/src/css/xxhdpi.css

clients/flash/air-client/src/css/xxxhdpi.css

...onscript/org/bigbluebutton/lib/chat/views/ChatViewBase.as

.../bigbluebutton/lib/chat/views/skins/MessageInputSkin.mxml

...uebutton/lib/common/services/DefaultConnectionCallback.as

...bigbluebutton/lib/presentation/models/PresentationList.as

...ipt/org/bigbluebutton/lib/whiteboard/models/Annotation.as

...g/bigbluebutton/lib/whiteboard/models/PencilAnnotation.as