Merge remote-tracking branch 'tootsuite/master' into merge-upstream

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20171130000000) do
+ActiveRecord::Schema.define(version: 20171201000000) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -218,7 +218,7 @@ ActiveRecord::Schema.define(version: 20171130000000) do
   end
 
   create_table "lists", force: :cascade do |t|
-    t.bigint "account_id"
+    t.bigint "account_id", null: false
     t.string "title", default: "", null: false
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false