fix issues #84
Related to issue #85
#related to issue #85
Related to issue #85
fix issue #86
avoid updating poni file: copy it in tmp folder.
Related to issue #87:
Re-compile using cython 0.19.2 where array of bint is no more allowed
Merge branch 'master' into devel

Conflicts:
	src/_distortion.c
	src/_distortion.html
	src/splitBBox.c
	src/splitBBox.html
	src/splitBBoxLUT.c
	src/splitBBoxLUT.html