Thread scopes through #matches?. #454.

Also add an apply_to_mentions attribute on Glitch::KeywordMute, which is
used to calculate scope.  Next up: additions to the test suite to
demonstrate how scoping works.

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: 2018_05_28_141303) do
+ActiveRecord::Schema.define(version: 2018_06_04_000556) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -206,6 +206,7 @@ ActiveRecord::Schema.define(version: 2018_05_28_141303) do
     t.boolean "whole_word", default: true, null: false
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
+    t.boolean "apply_to_mentions", default: true, null: false
     t.index ["account_id"], name: "index_glitch_keyword_mutes_on_account_id"
   end
 
@@ -466,7 +467,6 @@ ActiveRecord::Schema.define(version: 2018_05_28_141303) do
     t.bigint "application_id"
     t.bigint "in_reply_to_account_id"
     t.boolean "local_only"
-    t.text "full_status_text", default: "", null: false
     t.index ["account_id", "id", "visibility", "updated_at"], name: "index_statuses_20180106", order: { id: :desc }
     t.index ["conversation_id"], name: "index_statuses_on_conversation_id"
     t.index ["in_reply_to_id"], name: "index_statuses_on_in_reply_to_id"