Storing learner birthday
Tidying up auth-related templates
fixed program url in normalizeProgram
fixed thumbnails on /explore fixes #484
added shortname to program data in openbadger test
Template allows for custom underage passwords

Deleting server-side logic that denies this
Allowing guardians to use their own email address
Merge branch 'master' into passwords
Merge pull request #435 from andrewhayward/birthdays

Storing learner birthday
Merge pull request #499 from andrewhayward/auth

Tidying up auth-related templates
Merge pull request #500 from curlee/master

fixes for explore pages
Merge pull request #502 from andrewhayward/passwords

Resolving password resetting confusions
Merge pull request #501 from andrewhayward/migrations

Making migrations actually do something useful
Fixing learner birthday migration