[AIR] combine air specific classes with their base versions

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

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

...s/flash/air-client/src/org/bigbluebutton/air/AppConfig.as

...h/air-client/src/org/bigbluebutton/air/chat/ChatConfig.as

...ient/src/org/bigbluebutton/air/chat/views/ChatRoomView.as

...src/org/bigbluebutton/air/chat/views/ChatRoomsMediator.as

.../org/bigbluebutton/air/chat/views/ChatRoomsMediatorAIR.as

.../src/org/bigbluebutton/air/chat/views/ChatViewMediator.as

...c/org/bigbluebutton/air/chat/views/ChatViewMediatorAIR.as

...nt/src/org/bigbluebutton/air/chat/views/TopToolbarChat.as

...lient/src/org/bigbluebutton/air/common/views/NoTabView.as

...lient/src/org/bigbluebutton/air/common/views/VideoView.as

...nt/src/org/bigbluebutton/air/common/views/VideoViewAir.as

...c/org/bigbluebutton/air/deskshare/views/IDeskshareView.as

...rg/bigbluebutton/air/deskshare/views/IDeskshareViewAir.as