fix ESTranslationSerializerField attr check
Revert "New region for testing purposes (bug 1040154)"

This reverts commit 082c3161756e6ae04894711abd4490d04a498af4.
Playing catch-up by excluding recently added regions (bug 1040154)
Fix typo (bug 907910)
Update landfill settings set CELERY_ALWAYS_EAGER to True.
remove iarc waffle (bug 932019)
Merge pull request #2330 from ngokevin/iarc

remove iarc waffle (bug 932019)
add background color to FeedShelfIndexer
use FeedPreviewSerializer to deserialize feed app previews