Allow numeric permalinks
Disable registration and not-federated login

The frontpage still has references to a standard login, but the page will be completely remade soon.
Always create an account when logging in via federation, closes #531
Block change of login and password, closes #529
First version of the new frontpage customized for UFRGS, refs #451
Only active users can log in via federation, closes #449
Set default locale to pt-br
New simpler frontpage, with more UFRGS, less Mconf
Add new Site#shib* variables to seeds.rb
UFRGS logo in the page header
All footers are now like the one at the frontpage
Fix locales for webconf rooms inside spaces
Merge remote-tracking branch 'upstream/master'
Add a controller/view to allow login with a superuser account

Needed when the app is first installed and the admin needs to login to configure it.
Merge branch 'master' of github.com:mconf-ufrgs/mconf-web
Allow admins to change their account password
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'

Conflicts:
	app/controllers/shibboleth_controller.rb
fixes #669 The login is not done using the email and password, but with the Card ID and password
Merge remote-tracking branch 'upstream/master'