* Removing unused MVC
* Counting attendee count for courses_terms correctly. Can be replaced by model callbacks.
* Fix: file_parser parses multiple days wrong.
* Massive refactoring: Renaming Invoice to Address + table name + object references + relation configurations.
* Adding page titles for more pages.
* 'name' virtual fields now also adds title.
* courses_terms now viewable by terms/view/<term_id>
* Updating gitignore
* Regenerating fixtures and model and controller test due to massive changes.
* Removing unused templates.
* Removing accidentally added file.