Replaced LoadModel with LoadService
Add database config to gitignore
Fleshed out System.php and included properly in index.php
Added support for a $usesRepositories property in controllers
Made LoadDatabaseConnector public and removed Database prop from System
Index calls System::Initialise
Some changes to System.php - removed some debugging
ItemController and ItemRepository now return an item from the DB!
Put .gitkeep in app config