* Removed comparison of -1 to unsigned int
* Corrected comparison of current_device to HID_INTERFACE_ANY
* Exposed downstream errors in Windows implementation of CM_MP750
controller corrected
* Added "Off" mode
Previous issues with hidapi-hidraw vs hidapi-libusb have been resolved.
CMMP750Controller.cpp now calls GetStatus in the constructor to query
device and set current state. Added "Getters" to the public interface to
allow the RGBController_CMMP750Controller.cpp to access current state in
construction.