doubled ir image size for better pattern detection.
implemented ir value range detection based on last detected board area.
added storing of detected points.
calibration now loads the stored points instead of detecting them again on the images.
some minor performance improvements.
depth registration now only generates one lib that contains the cpu and/or opencl implementation based on detected libraries.
should now work with apple and clang.
moved starting of libfreenect device to initialization.
removed unused calibration file entries from loading.
added output of default camera parameters and the ones loaded from the calibration files.
Fix for finding OpenCL on linux.