(feat) Installs angular-translate
(Feat) Adds support for loading translation files
(Feat) Adds support for storing language preference

Via preferences menu
(Feat) Loading preferences at login

Also switching languages realtime when selecting them in Prefences
screen. Real cool!
(Feat) Adds detection of preferredlanguage

When a user visits the landing page the preferred language is guessed
from his browsersetting and the appropiate translation is loaded.
A user can always switch his preferred language from the preferences
menu and this will be loaded once he logs in.