Customize third party signup form fields
Refs: #3041
Refine shibboleth signup mechanism
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
View revisions
Also available in: Atom