change the structure so that the PRODUCTION_DIR contains assets, animation, and lighting directories.
updated project_evn.sh to poing to /groups/owned, added the creation of the file heirarchy to hou_asset_mgr.py, and updated the asset manager code just cuz.
Merge pull request #2 from bkingery/master

Updated file hierarchy
Create maya_obj_export.py

I added this from Josh's folder.
Shelf should be working fine when launched from the maya env script.
Ignored .pyc files
Merge branch 'master' of https://github.com/murphyrandle/byu-animation-tools