Course Instructor as financeadmin role, will be able to download all purchase transactions in the course as a CSV file
Move a few HTML elements on the instructor dashboard page
updated the course registration models
added registration-codes generation functionality

rebased and resolve conficts with cdoge/registration_codes

feature enhancement request: added transaction group name text field to the download buttons as an extra optional query paramerter
added django admin pages for Coupon Table

added the suggested changes by cdonge
registration code checkout flow

Redirecting to dashboard after free user enrollment.
added course price set/view/edit functionality

added CoursmodeArchive model to save the old prices history

analytics -> instructor_analytics

analytics -> instructor_analytics
refund message for purchased courses

Add little more logic for paid courses
add more detail to new CourseModesArchive table
e-commerce UI suggested changes
Retrieving active coupon codes from model
Merge pull request #4590 from edx/cdodge/fix-reg-codes

eCommerce enhancements (pt. 2)