"Fixing a Hole" or Quick fixes for summary and enrollment_controller revisions

Includes a patch for the summary page and better handling of the new/old controller functionality so that the whole flow can be traversed.

There's still a bug that the styling for the race checkboxes introduced (mentioned as a comment in #141 ). Added the old checkboxes back in as HTML comments on the gender/race page. If you need to get past the race page comment out the styled ones and uncomment the old ones.

@codesliced Ready for review. Fixes your finds in #140 and #139 .