* Massive db schema refactoring due to chaned requirement.
* Updating Mysql Workbench model file.
* Renaming global javascript objekt to CAKEWORKSHOP.
* Generating new Model classes and fixing all relationship definitions.
* Removing unused model "Title".
* Updating some SQL queries to be handwritten.
* Removing old jquery lib.
* Adding file_parser.js node.js file for old trainings.
* Exporting stored procedures to import old data from the previous
database.