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
- LMS, CMS and Common support for unicode Arabic I/O.
- New RTL sass files for both LMS and CMS and some fixes.
- Statements added to check for availability of other languages yaml files.
- Added logic in html to load RTL css on language change if bidirectional.
- Added a language change link to switch between Arabic and English versions of the platform.
- Added set_lang url with view definition to perform language change.
- Added new variable to common.py "ENABLE_LANGUAGE_CHANGE" in both LMS and CMS to enable/disable language change.
- missing Sass file
- fixed commenting and indentation according to common code style
- removed env/common extras to allow language change
- removed commented out lines (clean-up)
- single include for common sass files
- reverted the removed line in "cms/templates/widgets/header.html"
- unit test fixes
- abstracted sass file
- unit test trial 0.1
- changed flag ENABLE_LANGUAGE_CHANGE to ENABLE_QRF_SETTINGS
- re-added the cache_if_anonymous decorator on home pages
- final abstract sass
- merged new video test files
- LMS, CMS and Common support for unicode Arabic I/O.
- New RTL sass files for both LMS and CMS and some fixes.
- Statements added to check for availability of other languages yaml files.
- Added logic in html to load RTL css on language change if bidirectional.
- Added a language change link to switch between Arabic and English versions of the platform.
- Added set_lang url with view definition to perform language change.
- Added new variable to common.py "ENABLE_LANGUAGE_CHANGE" in both LMS and CMS to enable/disable language change.
- fixed commenting and indentation according to common code style
- removed env/common extras to allow language change
- removed commented out lines (clean-up)
- single include for common sass files
- reverted the removed line in "cms/templates/widgets/header.html"
- unit test fixes
- abstracted sass file
- unit test trial 0.1