Renames Controller from App to Flights Ctlr
Reviews entites for compliance
Adds POST and persistence insertion
Reviews tests. Improves coverage for controller
[refactor] Simplified DI. Still uses object controller but allows DI and so testing can inject FakeImpl. Also, got rid of Global object. Also, testing is not loading a FakeApplication which is heavy like hell
Merge pull request #33 from ignasi35/master

New approach to tweaking play for DI and testing without mocks