Use Django Nose [MJ-818]

- Adds test_ to the beginning of all test modules
- Removes test_ from modules that do not contain tests
- Removes star imports from app/tests/__init__.py

All tests pass. This should have no effect on production, but you will most likely have to remove all pyc files locally.
`find /home/[username]/projects/MyJobs -name "*.pyc" -exec rm {} \;`