LILY-255: use BetterForm from django form utils for our forms and modelforms
Merge pull request #7 from HelloLily/feature-betterform-255

LILY-255: use BetterForm from django form utils for our forms and modelf...
LILY-253: Improve contact list ux
LILY-258: Improve account list ux
Remove double headers on lists and forms

Commented out the double headers for now, creating a new ticket to make
them useful
LILY-266: Improve cases list ux