testing google authentication, EDUID-155
tests for logging in through social networks, EDUID-155
fix undefined variable in sna account creation, EDUID-155
unconditionally search the registering email, EDUID-155
some docstrings, EDUID-155
disallow social signup if rhe email is already regisstered and verified, EDUID-155
factor out some shared code to eduid_am, EDUID-155
Missing import in test
fix issue when signing up with a previously registered andd deleted email
increase version for the changes related to EDUID-155