Extend correct class.
Require required class definition.
Fix SwatDB typo.
Remove abstract method already defined in parent.
Fix translation syntax.
Fix javascript variable name typo.
Fix SwatDB typos.
Add missing period in translated string.
Add CSS classes to UI containers.
Remove fixed image from saving message. It can be added back as a CSS background.
Fix undefined variable reference.
Update CSS classes and prefer classes to IDs.
Change button from a link to a button element.
Remove hard-coded clear:both elements.

They can be done in CSS with a clear fix mixin.
After page height animation is complete, set overflow back to visible.

Allows box shadow on contained elements to render correctly.
Remove another hard-coded clear.
Put button before content.
Fix loading quiz response on response server.
Don't crash if quiz has no questions.
Better mobile support for question dialog.