Fixed bug #3007 where using wrong "old password" when changing password results in "Password changed succesfully" message even though password change fails.
Fix for issue #3477, 'No "Contact Us" at Bottom of the page. Added the new link and used the existing env.t('contactUs') string so all the translations are correct. Also added the link to layout.jade because that was stubbed out there in comments. Both links go to a new page with other links as described in the issue.
Merge branch 'develop' of https://github.com/ebiagogo/habitrpg into develop