[AIR] move common-library files under air-client

clients/flash/air-client/libs/as3commons-lang-0.3.7.swc

...utton/lib/chat/commands/RequestGroupChatHistoryCommand.as

...button/lib/chat/commands/RequestGroupChatHistorySignal.as

...ebutton/lib/chat/commands/RequestWelcomeMessageCommand.as

...uebutton/lib/chat/commands/RequestWelcomeMessageSignal.as

...igbluebutton/lib/chat/commands/StartPrivateChatCommand.as

...bigbluebutton/lib/chat/commands/StartPrivateChatSignal.as

...ient/src/org/bigbluebutton/lib/chat/models/ChatMessage.as

...nt/src/org/bigbluebutton/lib/chat/models/ChatMessageVO.as

.../org/bigbluebutton/lib/chat/models/ChatMessagesSession.as

...client/src/org/bigbluebutton/lib/chat/models/GroupChat.as

...nt/src/org/bigbluebutton/lib/chat/models/GroupChatUser.as

...ient/src/org/bigbluebutton/lib/chat/models/GroupChatVO.as

...org/bigbluebutton/lib/chat/models/IChatMessagesSession.as

...rg/bigbluebutton/lib/chat/services/ChatMessageReceiver.as

.../org/bigbluebutton/lib/chat/services/ChatMessageSender.as

...org/bigbluebutton/lib/chat/services/ChatMessageService.as

...rg/bigbluebutton/lib/chat/services/IChatMessageService.as

...r-client/src/org/bigbluebutton/lib/chat/utils/ChatUtil.as

...rc/org/bigbluebutton/lib/chat/views/ChatItemRenderer.mxml