update header
Merged 'dev'.

Conflicts:
	app/base/env.js
updated api url
updated api url ... again
finish header menu
Finish gui-talks-cam-293
added first e2e form test
form testing, not finished
Merged 'dev'.
Kann nicht zu Ende geführt werden, weil Registrierung kaputt ist.
Finish Feature-e2e
chnaged API URL back to grunt based webserver
bugfix reservation secret handling