[yarpros] cleanup stray comments and type glitch
[yarpros] bring back yarp->ros image transmission
[Cleanup]
[yarpros] clear up stray use of ssize_t, replace with YARP_SSIZE_T
Change status type from int to nite::SkeletonState in all getSkeletonState(int) methods
Quit OpenNI2DeviceServer if sensor cannot be found or cannot be initialized
Remove bool argument from updateInterface() (obsolete concept from OpenNIv1.x)
Remove getSkeletonState() method