Add endpoint to log in with OAuth access token
Generalize assets to any block_type but using
AssetKey and the metadata store
PLAT-204
Merge pull request #5813 from edx/gprice/login-oauth-token

Add endpoint to log in with OAuth access token
Merge pull request #5847 from edx/dhm/generalize_assets

Generalize assets to any block_type but using
Skip test broken on master. Sent to team for review.
Merge pull request #5865 from edx/benp/skip-broken-MA-117

Skip test broken on master. Sent to team for review.
Fix broken test (due to merge conflict).
Merge pull request #5867 from edx/mobile/fix-broken-master

Fix mobile_api broken test (due to merge conflict).
Add a `created` field to OrderItem.