Make tranlate a button for better visibility

Signed-off-by: Michal Čihař <michal@cihar.com>
Implement social auth disconnect

Signed-off-by: Michal Čihař <michal@cihar.com>
CSS for engage page

Signed-off-by: Michal Čihař <michal@cihar.com>
Remove jQuery UI CSS/JS