[Fixed Bug] Visual Studio 2010 won't build

Due to some commits Visual Studio 2010 build broke.
Here are some changed needed to make it work again.

Moved US* to MOAI* as in moai/moai-dev@9c39f36
Added MOAITaskQueue and MOAITaskSubscriber as in moai/moai-dev@c8c863f
Removed MOAIData.cpp since was deleted in moai/moai-dev@e682da1
Removed MOAIDataIOAction.cpp since was deleted in moai/moai-dev@c8c863f