Merge pull request #20 from theodortruffer/master

Added Mensa object, menu object, created Model object to parse JSONObjec...
Refactoring of the model:
Added builder for menu and mensa and made outline for parsing JSON
directly in the builders, see TODO comments for this (eclipse Tasks view)
modifed readme, please read
updated readme
Merge pull request #21 from NicolasKessler/master

Refactoring and updated readme
Added builder for menu and mensa and made outline for parsing JSON directly in the builders, see TODO comments for this (eclipse Tasks view)
Be aware that I did not change the Model class at all so there are errors in there! I will try and fix them tonight (I will at least comment what i planned to modify to make it work properly)
Added TODOs to the code with my intents. Feel free to change stuff etc...
Merge pull request #22 from NicolasKessler/master

Added TODOs to the code with my intents. Feel free to change stuff etc.....