re-do frontRegApp, checkout, ids, classes, glm-grid to Found-grid

re-do frontRegApp, checkout, ids, classes, glm-grid to Found-grid

- Changes I made in frontRegApp.js were made in that compiled file
rather than the individual files. Will make a gulp commit after
this commit.
- Checkout page is changed so summary appears below billing/shipping
sections in small view, but on the right in medium-up
- A bunch of IDs and classes added, changed, or removed, to make for
a more usable markup
- CSS changes.. all over
- Removed references of glm-grid in registration.html, Foundation
grid now used instead.