reverting the upgrade
Specify that split_test_modules support children.
Merge pull request #3697 from edx/e0d/revert-mysql-upgrade

reverting the upgrade
Merge pull request #3700 from edx/andya/split_test_has_children

Specify that split_test_modules support children.
resolving display issue where older/smaller courses images wouldn't fill designated area on the student dashboard
Merge pull request #3696 from edx/talbs/fix-lms-dashboard-images

FIX - LMS: Dashboard Course Image Dimensions
Added @ksteph to AUTHORS file

See https://github.com/edx/edx-platform/pull/506
Merge pull request #3710 from edx/db/add-to-authors-file

Added @ksteph to AUTHORS file
Allow creation of components on container page

This commit implements STUD-1490, allowing creation of components
on the container page. It also enables the delete and duplicate
buttons now that new content can be created that would benefit.