Fix for Django getting confused over non-existing models file
Revised the models slightly
Created a subclass of TestCase with some good-to-have data
Written a lot of tests for the Function and Assignment models and made separate modules
Removed some irrelevant tests defined in other places
Deactivated the tests to make build pass
Merge pull request #46 from LiTHeBlas/unit-tests-for-blasbase

Unit tests for blasbase