Add bower install dir and platforms dir to .gitignore

Those dirs are for deps and can be easily reproduced by
$ bower install
$ cordova platform add android
Make sense of routing
Refactor and separate files to add dummy parts

Added
* dummy CategoryService
* dummy MashupService
* dummy AppCtrl from app.js
Add quick tags mockup
Merge branch 'feat/startingStuff'

Throw together some simple skeletons