Update the redeem code schema

Updating the redeem code schema.

Adding migration file.

Adding course mode support when redeeming a code.

Conflicts:
	lms/djangoapps/shoppingcart/views.py

Add sales admin privileges for redeem code generation.

Making sure redeem code URLs work for verified courses.

pep8 violations

Code Review and Test Cleanup changes

Added tests, fixed tests.

Updating the boolean checks in ecommerce template

Allow configuration to override links to mobile app stores

Fix for MA-187 where a value error was thrown when
a course has a video directly under a section. This
PR handles the situations where a chapter or section
can be none, and then returns the appropriate url
if available.

Also prevent Jasmine from attempting to load deleted templates

Use honor code ribbon if verification status is not missing, submitted, or approved; title column on payment confirmation page holding dollar amounts more appropriately

OPEN-307

OPEN-307

OPEN-307

added the functionality of adding the expiration date, and also handled in the shopping cart when the user try to add the expired coupon code in the shopping cart

added expiration date in the coupons list in the ecommerce page

added the unit tests and jasmine tests

fix the quality issues and rebased with master

regenerated the migration file with a different number

i18n and verified te course mode

changes suggested by  stephan

TNL-498

ECOM-248 Course Info API. Basic functionality implemented.

ECOM-248 adding factory for about descriptor and test cases for course info api

ECOM-248 adding test cases for couse info api.

ECOM-248 re-factoring code. updating test cases.

Tests for course_about data module

ECOM-248 Adding test cases for the exceptions.

ECOM-248 re-factoring code. fixing quality issues.

ECOM-248 fixing test cases and moved parse video method into utils.

added github username in authors

ECOM-248 removed merging issue of test_data

ECOM-248 removed unused files