Added testing config
Merge branch 'master' of https://github.com/wilchandler/exitslips
Got rspec tests running
Added AR tests and teacher/student models
Merge branch 'master' of https://github.com/wilchandler/exitslips into AR-association-testing
udpate
Merge branch 'master' of https://github.com/wilchandler/exitslips
Passing all AR association tests
Merging AR-association testing with master
Fixed merge conflict
Fixed merge conflicts when added devise.