Handle the queue menu not fitting vertically (bug 985996)
Move menu CSS
Scope CSS changes to landscape
Remove the 'Category' model, use constants instead (bug 987880)
Merge pull request #2291 from diox/flat-categories

Remove the 'Category' model, use constants instead (bug 987880)
Bump migration (bug 987880)
MySQL doesn't like longtexts with default value (bug 987880)
Merge pull request #2295 from mstriemer/queue-menu-overflow-985996

Handle the queue menu not fitting vertically (bug 985996)
Patch SlugChoiceField to accept falsey,non-None values (bug 1035434).
Merge pull request #2322 from chuckharmston/1035434

Patch SlugChoiceField to accept falsey, non-None values (bug 1035434).
add sizes to preview serializer
Escalate reviews for apps with prerelease permissions (bug 1036921)
Merge pull request #2321 from mstriemer/escalate-prerelease-permissions-1036921

Escalate reviews for apps with prerelease permissions (bug 1036921)
Removed swap file
no cache for feed items for feed builder (bug 1038339)
nuke feed search serializers for feed builder previews (bug 1038341)
Merge pull request #2323 from ngokevin/previewsizes

add sizes to preview serializer
handle case where preview size not in index