Updated codejail version
Merge pull request #2083 from edx/flowerhack/updated-codejail-reqs

Updated codejail version
Add sorting to Studio's Files & Uploads page

Added sorting to the new pagination logic for STUD-995.
Removed old unused images for Building a Course doc

STUD-1012
Merge pull request #2110 from edx/markhoeber/documentation/stud1012

Removed old unused images for Building a Course doc
During testing: drop contentstore when cleaning up modulestore
Merge pull request #2086 from edx/andya/asset-sorting

Add sorting to Studio's Files & Uploads page
Merge pull request #2111 from edx/dhm/drop_contentstore

During testing: drop contentstore when cleaning up modulestore
escape single quotes in optioninput (optionresponse) tags
STUD-893