fix focus color from form elements (refs #3555)
delete 'help' and 'terms of use' links from footer
delete 'help' and 'terms of use' links from footer
fix 'how it works' box heights
force the dropdowns-menu on main-navbar to align at right
add default classes and make sure a student is only in one.
update translations
fix test errors
Merge remote-tracking branch 'origin/master' into if-signup-3528

Conflicts:
	core/models.py