The schema migration to go with the kitsune cleanup.
Run ES with no replicas to be green
Merge pull request #2112 from rlr/migration-for-cleanup

The schema migration to go with the kitsune cleanup.
Fix bug 876706 - Add a "revert to this revision" button to the history diff page
Merge pull request #2116 from a2sheppy/review-diff-revert

Fix bug 876706 - Add a "revert to this revision" button to the history d...
Added `__debug__` to SUPPORTED_NONLOCALES to fix debug toolbar
Merge pull request #2118 from robhudson/fix-debug-toolbar

Added `__debug__` to SUPPORTED_NONLOCALES to fix debug toolbar
Merge pull request #2114 from robhudson/es-no-replicas

Run ES with no replicas to be green
Improve UX of Wiki Editor page
- Add a welcome message for first time contributor
- Add Help icons with links to relevant sections in Editor documentation
- Add explanations in page for Tags, Revision Comment and Attachments
- As Tags are now important for MDN search engine, moves them above Revision Comment
Merge pull request #2108 from tregagnon/improve-editor-ux

Improve UX of Wiki Editor page
The usual periodic image compression crunch
Merge pull request #2120 from darkwing/image-squish-paris

The usual periodic image compression crunch
Use button instead of javascript:; a
Merge pull request #2113 from darkwing/attach-button-be-quiet-icaaq

Use button instead of javascript:; a