better accounts forms
added check_terms_agreement to accounts app
adding a list of constants
social auth pipeline was sending two welcome emails; user or is_new wasn't properly set?
added a bunch of common accounts views and refactored with a new BaseAbstractUserProfile
fixed bug for can_disconnect_social_auth
added/fixed missing imports
Merge pull request #14 from talentral/master

improved accounts app
added following/followers