Started changing the services to a correct REST api to be able to use Restangular so simplify the async calls to backend

Added login and logout plus style for loginscreen
Refactored the services to use REST and Restangular

Added login, change password, log out
Added styling for content tree for the scheme builder
Merge branch 'feature/Rewrite_api_to_correct_REST' into develop
Merge branch 'release/Release_1.0.2'