Fixes General Files, starts testing the Api
Adds a test of EndpointsAliasProperty with setter
Separates the test cases in Classes
Starts the definition and linking of the models
Makes day_id from Exercise work properly and Fixes other api stuff
Finishes the API with Workout properly set and also Day methods
Merge pull request #7 from AEHO/feat/appengine_fixes

Feat/appengine fixes and recreation