Merge branch 'master' into glitch-soc/merge

Conflicts:
	app/controllers/invites_controller.rb
	app/serializers/initial_state_serializer.rb
	config/locales/ko.yml

db/migrate/20180510214435_add_access_token_id_to_web_push_subscriptions.rb

@@ -0,0 +1,6 @@
+class AddAccessTokenIdToWebPushSubscriptions < ActiveRecord::Migration[5.2]
+  def change
+    add_reference :web_push_subscriptions, :access_token, null: true, default: nil, foreign_key: { on_delete: :cascade, to_table: :oauth_access_tokens }, index: false
+    add_reference :web_push_subscriptions, :user, null: true, default: nil, foreign_key: { on_delete: :cascade }, index: false
+  end
+end

db/migrate/20180510230049_migrate_web_push_subscriptions.rb

@@ -0,0 +1,13 @@
+class MigrateWebPushSubscriptions < ActiveRecord::Migration[5.2]
+  disable_ddl_transaction!
+
+  def up
+    add_index :web_push_subscriptions, :user_id, algorithm: :concurrently
+    add_index :web_push_subscriptions, :access_token_id, algorithm: :concurrently
+  end
+
+  def down
+    remove_index :web_push_subscriptions, :user_id
+    remove_index :web_push_subscriptions, :access_token_id
+  end
+end