updated tests

- updated code to use Factory Girl
- removed some generated tests that do not hold true anymore
fixed some test that where failing

- because of a unfinished factory
fixed more test

- one still broken
fixed accociation typo in teamds
fixed tests
commented in test all working :)
removed dummy test
clenaup tests
removed outcommented code
Merge pull request #221 from koelncampus/fix-pending-tests

Fix pending tests / housekeeping