fix indent
ENH : first draft of point spread + cross talk functions
ENH STY: Moved point_spread and cross_talk functions to inverse.py + PEP8 fixes
Addressed Alex' comments
API + ENH : move ctf + psf functions + optim
FIX : relative import
cleanup
nosetested PSFs/CTFs
Improving PSF/CTF
cleanup CTF + PSF
more cleanup CTF + PSF
API : remove singvals from output in PSF/CTF (was not tested/used anyway)
update what's new + reference
misc
FIX : sample data not necesary
remove \n
missing .
fix test
Merge pull request #1368 from agramfort/mne_resolution

Mne resolution
FIX : fix paths in tests
FIX : remove keepdims for old numpy