Revert "Add indexes to all TimeStampedModels to match their default ordering"

Only validate honor mode for non-prof-ed courses.

Converted order API views to viewset

- Using a viewset to clean code
- Allowing staff users to retrieve orders
- Deprecated OrderByBasketRetrieveView

Regenerate the second of two 0002 refund migrations

Invoice processor test cleanup

Add indexes to all TimeStampedModels to match their default ordering

Make Refund.status and RefundLine.status into choice fields

Based test on PaymentProcessorTestCaseMixin to avoid unnecessary code duplication.

Make the credit checkout page respect payment processor switches.

Fix credit checkout page for courses with an audit mode.

ECOM-3166

TimeStampedModels have a default ordering of ('-modified', '-created').
In the django admin, this causes a full table scan. Indexing these
columns together will speed up those views.

Reference:
  https://github.com/django-extensions/django-extensions/blob/master/django_extensions/db/models.py#L29

Add honor mode as additional option to CAT

Fix test issues

Update AUTHORS

Add myself to AUTHORS file.

Voucher creation and generation of the CSV voucher report

Added management command to convert honor seats to audit

Using requests for SOAP calls

This switch from requests to urllib2 should resolve our issues with SSL verification.

ECOM-3099

Update getting_started.rst

Updated New Relic

ECOM-3099

E0d/upgrade gevent

Updated to Django 1.8.7

Updated Paypal SDK