great3 -> great3sims
(#51)
Workaround for python2.6 lack of gamma function
(#51)
Provide alternate to scipy.spec.hermite
(#51)
Various spacing edits
(#51)
Put n_star_linear in dict so it is accessible by config
(#51)
Add pad_factor to OpticalPSF parameters
(#51)
Enable psf.signal_to_noise in config
(#51)
Fix error I introduced to non-variable PSF runs
(#51)
pass -> return so we don't measure star shaeps for variable shear sims
(#51)
some 100 char line fixes
(#51)
Merge branch '#51' of github.com:rmandelb/great3-private into #51
use ceil to enforce minimum value
(#51)
fix comment about random number of stars
(#51)
minor edit to ground based PSF to see how it affects the spikes in the wings
(#51)
Merge branch '#51' of github.com:rmandelb/great3-private into #51
more tinkering, other value was default... (thanks 5to rachel for pointing this out...)
(#51)
Revert "more tinkering, other value was default... (thanks 5to rachel for pointing this out...)"

This reverts commit e073391abec2b67384fa3586be9be1442e06ba59.
Revert "minor edit to ground based PSF to see how it affects the spikes in the wings"

This reverts commit 7e704a6b5c742e312997cb8f383e72ad8d7019d1.
TESTING: added PSF stepk output, will revert later
(#51)
TESTING: test_run will currently quickly generate double sized ground PSFs and quad-sized space PSFs, with printed output about stepK
(#51)