initial commit.
added IP combining after multiple readouts and preview using matplotlib
on CLI usage.
calculate scalefactors from consecutive readouts. that fixed bug in
scalefactor calculation.
added setup.py
support list of files either .img or .inf or even list of both.
added some consistency checks for ensuring the correct order of the IP
images.
added __all__, __version__ and changed modulename to more pythonic lower
case.
Initial commit
added documentation.
added egg-info to .gitignore (forgotten in fade5e2)
parallelized read image and PSL conversion using 3 processes by default.
added shebang. removed specific matplotlib backend.
removed paralellization, because numexpr gave an even better speedup.

If numexpr is not installed, the code will fall back to the single
threaded (slow) numpy version only.
removed some warnings, minor improvements.

removed 'RuntimeWarning: Invalid value encountered in less'
added -l and -s option.
added colorbar and --log
Merge branch 'dev'

Conflicts:
	ipread.py