add setup scripts to set PYTHONPATH
use utensils.makedir in stargal.py
simplify a bit
Merge branch 'master' of https://github.com/DarkEnergyScienceCollaboration/ImageSimulationRecipes
add phosimPhysics.py recipe and knife_kit.py utensils module
New nojekyll attempt, more recipes
New nojekyll attempt, in root
Merge branch 'master' into gh-pages
Knife kit and phosim physics