new UI
Merge remote-tracking branch 'origin'
Merge remote-tracking branch 'origin'
Merge remote branch 'origin/master'
some work on casting in OpenCL (int32 -> float32)
Seems the cast is is broken
Merge remote-tracking branch 'origin'

Conflicts:
	openCL/ocl_azim_LUT.cl
	pyFAI-src/ocl_azim_lut.py
work ongoing ... do not use