started writing tests for REST api
writing more tests for the access control and api
refined tests for trainer
change folder structure
restructured files, corrected tests
modified tests for new structure
merged tests
refined tests, moved controller and model to rest module, merged trainer and club module
added a session handler for basic information
deleted useless files in root dir
corrected imports
Merge pull request #15 from damienfir/develop/refactor-models

added tests, changed file structure and simplified some models, added a session handler