Add some useful functions
Add Game::getLastGame()
Assert limit is a positive integer
Fix according to the spec
Type hinting
Fix getLastGame()
Merge branch 'master' into front_end_functions
Reformat game->getGlobalRatings()
Remove find by datetime
Correct getGlobalRatings
Support CLI unit testing
Fix travis script command
MySQL support in travis
Make travis run all migrations before running tests
Make travis run all migrations before running tests
Make travis run all migrations before running tests
Fix some unit tests for travis
Make travis run all unit tests
Use the correct migration order
Increase time limit for tests