Dfoxpowell/modal oform signin signup

- Implement oform on signup/signin modals
- move oform globals to global js because it was not getting included before it was called in modal component JS --- Need Browserify!!!
- log response from signup to segment
- styling for error classes in helpers and modal scss
@kylerush I left comments in the code with the error object that comes back on the production site.  Looks like it has a specific message that get's output to the user