close the modal after signup success CLUB-582
redirect user to login page if they try to sign up with email which already exists in system CLUB-583 #resolved
fix issue with langauge not being set correctly for api calls
load login view if user tries signup with existing email/username CLUB-582
fix variable name in user api test
Merge pull request #674 from onepercentclub/feature/club-582

Feature/club 582