add sphinx auto generated docs
remove example _bashes imports
add pip requirements.txt
use mock trick in conf.py
add galsim to mock module list
add scipy.special
fix typo
single line
add astropy to list
add astropy.io to list
temporarily comment out great3 import
add more modules to mock list
add _bashes import to module
uncomment great3 module import
Merge pull request #14 from deepzot/#11

Use sphinx to generate documentation pages