simplify splitting user id from activation code
Users: add isActivated method to password auth
Re-Implement backend login using stylable full-screen pages

this allows much better styling.

also implement a zend controller that works with kwf_form
load scss files for view templates also from web

this allows custom styling per web
add missing translations
backend login: use uploaded login image, with different size
Styling New UserForms

Conflicts:

	views/user/login.tpl
	views/user/lost-password.tpl
Merge pull request #248 from nsams/backend-login

Backend login full screen