Enrollment attributes are now always stored, regardless of whether an enrollment is being created or updated. This will ensure that learners who purchase paid modes, without first enrolling in a non-paid mode, can request refunds if they choose to un-enroll from a course run within the refund window. LEARNER-1282
common ------ This directory contains common code shared between LMS and CMS, such as Mako templates, CSS, and Coffescript.