drop column (bug 946006)
fix theme submission layout (bug 950693)

close #1550
fix dev success msg test + code reviews
Add blurb about checking out the Marketplace on Github (bug 949591)
Remove mkt/consumer asset shame (bug 934778)
Manually invalidate CollectionMembership when adding an app (bug 950238)
Merge pull request #1552 from diox/fix-collectionmembership-cache-invalidation

Manually invalidate CollectionMembership when adding an app (bug 950238)
Delay reindexing apps in collections (bug 950839)
Don't use ES for apps in a collection in preview mode (bug 950839)

Necessary now that the indexing is properly delayed.
correct island hero heading and gutter width
don't require the primary class on .island.hero
correct bad whitespace
shorten wide island hero selector
Merge pull request #1553 from mstriemer/reviews-column-too-narrow-951164

correct island hero heading and gutter width
Merge pull request #1551 from mattbasta/killitwithfire

Remove mkt/consumer asset shame (bug 934778)
Merge pull request #1549 from diox/collections-delay-app-indexing

Delay reindexing apps in collections, don't use ES any more in preview mode (bug 950839)
fix referencing comm thread before creation (bug 948938)
flag next step message on devhub