Renamed ouyaControllerGlobalRef to ouyaControllerJNI, because its more a JNI representation than a global reference
Improved error messages, due fixing a logical error in the text and adding the complete path to the missing methods.
Added getOuyaDeviceId to uni binding for the OuyaController
Added getDeviceId to CCOuyaController class
Added getPlayerNum to CCOuyaController class and ODK jni binding.