refactored services.role_check into a decorator.
cached role_bucket into user session
added permissions
remove user permission checks for creating collection
removing user_passes_test decorator -- was causing build to fail, even on import
enumerated different roles + added some checks
indentation error
change template to also pass in deck_id as GET params
porting decorator to other files + fixing template errors
fixed deck_id in query string
fixed issue on create edit card interface
Merge pull request #62 from Harvard-ATG/bchau_branch

refactored services.role_check into a decorator.