Test fixies + basic dashboard for :player
1) FIX add variable field category JS in add variable field action
2) EDIT after sign in, redirect to dashboard
3) FIX plain layout for signup
-user not available for aside menu
4) FIX :guest has permissions for signup and signin
5) ADD method for obtaining spefific UserRelation - get_my_relations_with_statuses
-including rspec tests
6) FIX path in signup action
7) ADD dashboard
-view separated into parts based on _user roles_
-actually implemented
--show latest player measurements
--show player's coaches
8) EDIT devise routes for registration
-pathes shorten to /signup, /edit_profile, /cancel_profile
9) FIXED test steps
-user creation
-checkbox selecting