Moved Studio images from img/ directory to images/ directory

OPEN-304
Fix the DJFS dependency.
MA-90 Update Analytics Shim to match new mobile requirements.
Always create an asset metadata collection in the Mongo modulestore.
If no collection name is specified, use a default name.
https://openedx.atlassian.net/browse/PLAT-294
Merge pull request #5955 from edx/sanchez/fix-djfs-dependency

Fix the DJFS dependency.
Consistently name edX branded elements within the LMS [OPEN-300]
Translate "Powered by Open edX" string
Merge pull request #5941 from edx/studio-images

Moved Studio images from img/ directory to images/ directory
disable "go to payment button" on click (ECOM-643)
Merge pull request #5957 from edx/adam/disable-purchase-button-on-click

disable "go to payment button" on click (ECOM-643)
Merge pull request #5885 from edx/sarina/name-branded-assets-in-lms

Consistently name branded assets in lms
Merge pull request #5960 from edx/jeskew/default_asset_collection_name

Always create an asset metadata collection in the Mongo modulestore.
Merge pull request #5956 from edx/mobile/analytics-shim-update

MA-90 Update Analytics Shim to match new mobile requirements.
Updated ora2.