Another iteration on enterprise_learner_portal serializer

Once again prevent errors happen if certificate_info is None (#556)

* Once again prevent errors happen if certificate_info is None

* Bumping version

* Changing declaration of certificate_info

Type check added, as well as quality fixes

Adding a type check to the CourseEnrollmentSerializer in the enterprise_learner_portal app to prevent 500s.

Also adding enterprise_learner_portal app to quality check commands.

Fix for update course description in SAP

Fix for include course run dates and pacing type in the course description sent to SAP. Prior release (1.9.2) did not include bumping the version in init.py.

Update course description in SAP

Include course run dates and pacing type in the course description sent to SAP.

Fix for distribution egg

An entry for the enterprise_learner_portal was missing from MANIFEST.in preventing the entire app's subdirectories from being packaged up into the dist egg. This is fixed in this release.

Also included are some previously unreleased typo fixes

Adding enterprise_learner_portal app

This release adds the enterprise_learner_portal app for the purpose of supporting the data needs of the enterprise learner portal product (instance of frontend-app-learner-portal for enterprise)

Remove tincan from src directory

1.8.9

Handled corner cases for default values in CornerstoneCourseListAPI.

Handle corner cases for default values in CornerstoneCourseListAPI.

Added history models and updated Cornerstone Course List API

• Added history models for PendingEnrollment and PendingEnterpriseCustomerUser.
• Sending default values for required fields in Cornerstone Course List API

1.8.6

Add/Update logs for GrantDataSharingPermissions and DataSharingConsentView views to improve monitoring.