fix astakosgroup creation form
Progress I
remove unique constrain from AdditionalEmail
add (third_party_identifier, provider) index on AstakosUser
Merge branch 'refs/heads/0.6'
Conflicts: docs/source/backends.rst docs/source/conf.py docs/source/devguide.rst
register email returned by shibboleth (either as a primary or additional email)
Refs: #2416
during datamigration set only to inactive users activation_sent date to epoch
Refs: #2471
Register the date a user activation email sent and reset it when the user becomes active (for future use)
Provide an API call for the service clients to send user feedback
Provide email change mechanism
Refs: #2363
Add south migration to apply latest fields changes
remove is_accepted & date_accepted Invitation fields (substituted by consumed & date_consumed reps.)
Force user to accept service terms
Refs: #2019
add creditevent listener to set user ``has_credits`` flag and pass the information to ``authenticate`` response
Refs: #1824
merge with master
Repo refactor and webproject hooks fixes