merged the model_db branch. This extracts the database reset out of the controller and runs it whenever you start rails

Squashed commit of the following:

commit c4175bf5cb5d8c09ddf1065bb3f1ef33c4e8ede6
Author: Kenneth Radunz <kenneth.radunz@web.de>
Date:   Thu Mar 14 12:51:14 2013 +0100

    added an initializer so rails now resets the database on startup.
Merge branch 'model_controller_coordination' of https://github.com/pse3/SGfM into model_controllor_coordination

Conflicts:
	app/controllers/application_controller.rb