Merge pull request #5288 from riadvice/mobile-emoji

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

...h/air-client/src/org/bigbluebutton/air/main/MainConfig.as

...ient/src/org/bigbluebutton/air/main/views/EmojiCallout.as

.../org/bigbluebutton/air/main/views/EmojiCalloutMediator.as

...c/org/bigbluebutton/air/main/views/EmojiItemRenderer.mxml

...t/src/org/bigbluebutton/air/main/views/EmojiListSkin.mxml

...c/org/bigbluebutton/air/main/views/MenuButtonsMediator.as