Merge branch 'master' into glitch-soc/merge-upstream

Conflicts:
	app/models/status.rb
	db/migrate/20180528141303_fix_accounts_unique_index.rb
	db/schema.rb

Resolved by taking upstream changes (no real conflicts, just glitch-soc
specific code too close to actual changes).

spec/fabricators/status_stat_fabricator.rb

@@ -0,0 +1,6 @@
+Fabricator(:status_stat) do
+  status_id        nil
+  replies_count    ""
+  reblogs_count    ""
+  favourites_count ""
+end