LEARNER-2754

LEARNER-2977

Fixes

EDUCATOR-1448

Modifies paver webpack task to use production configuration in all
non-devstack environments, and a development config in devstack.

LEARNER-1923

Currently we are using Django 1.4 regex for email validation which
does not allow custom domains (e.g. eclo.solutions), fixed it with
latest Django 1.11 regex.

LEARNER-2828

LEARNER-1694

Fix a11y failure

Fix header styling

Fix layout issues

Further layout fixes

TNL-6381 added an upgrade upsell to course info. In PR #15265, this was
partially removed/moved, but some clean-up work remained.

LEARNER-2026

LEARNER-2073

Input forms that need validation will have AJAX requests
performed to get validation decisions live.

All but a few important and common form fields perform
generic validation; these will need a back-end handler
in the future in order to have them validated through AJAX requests.

Information is conveyed on focus and blur for both
errors and successes.

This lets us consolidate chunks of JavaScript that are common to
multiple bundles, so that they can live in their own shared file. This
will be more relevant when we have UI components -- there's actually
very little shared code right now.

This sock sits at the bottom of both the home and the course content pages. It allows the user to click a 'Learn More' button to open a panel that allows the user to navigate to the upgrade checkout page. The sock is only shown for users that have not yet upgraded in a course that has a verification upgrade date that has not yet passed. Python tests cover the various course mode and upgrade dates.

LEARNER-1341

LEARNER-877

EDUCATOR-11