Make new site creation, and embedded comments login, work again.
Consider Facebook and Google OAuth email addresses verified

But disable GitHub and Twitter login.
Make /-/create-forum wizard redirect work with OAuth login.
Fix create-new-topic button bug: don't open new topic in new tab.
Make forum topic title appear: mark dummy user email as verified.
Rename createUserPopup.scala.html to showCreateUserDialog.
Start requiring login before posting a comment.
Don't redirect OAuth login inside login popup window.
Set the return-to-url also when logging in to edit.
Remove old obsolete code, add UnknownUser.User just in case.
Make admin page login via password work.
Fix OAuth login bugs.
Fix bugs

- Fix OAuth new user redirect bug.
- Fix close dialgos bug.
- Rename isInLoginPopup to isInLoginWindow.
Have 'gulp watch' run the default task.
Fix cookie path bug: default to /.
Enable Twitter and GitHub login again, ask for email.
Fix OAuth email address verification email return-to-url.