pwn: adding explicit camera matrices for xtion and kinect
pwn: resolved conflicts on pwn_mapper_controller
openni2: adjusted findOpenNI2.cmake so that it is compliant with the installation procedure of the bare OpenNI2.2 in /opt
pwn: added robust kernels, unburied cuda; openni2: compliant with the default package of openni2.2 from github
pwn: mapper_controller, adding edge saving between aligned frames and pwns