Ensure window.isExternal is loaded

Don't set a default for terms of service

For paid courses, add the course to the cart and redirect to the shopping cart view.

Don't send form method and url as form data.

Stub window.analytics in the access view test.

Moved images in folders to top level where appropriate, and change references.

OPEN-297

Includes a modification of validation logic which performs min and max length checks on optional fields in addition to required fields.

TNL-729

Includes several bug fixes caught during test writing, general clean-up, and adds js-url, a lightweight URL parser
Moved to setting ajaxType with passed in method for models and now handling form load fail errors
Added tests.

TNL-683