fixed a bug where new accounts where not stored, also last selected user is now saved
removed google analytics call
client secrets are now stored locally and need to be entered

the client secrets (client id and api key) need to be entered now and are then
stored locally, other stuff is broken right now because the googleApi is
instantiated before we actually have these client secrets.... :'(
started refactoring "AppRepeatCtrl"

first steps only, the goal is to have at least two controllers:
1) StartCtrl, which does not need any access to the Google/YouTube-API
2) YouTubeAccountCtrl, for everything else that needs API-Access

THINGS ARE COMPLETLY BROKEN RIGHT NOW!