Merge remote-tracking branch 'origin/master' into gs-master

Conflicts:
 	.travis.yml
 	Gemfile.lock
 	README.md
 	app/controllers/settings/follower_domains_controller.rb
 	app/controllers/statuses_controller.rb
 	app/javascript/mastodon/locales/ja.json
 	app/lib/feed_manager.rb
 	app/models/media_attachment.rb
 	app/models/mute.rb
 	app/models/status.rb
 	app/services/mute_service.rb
 	app/views/home/index.html.haml
 	app/views/stream_entries/_simple_status.html.haml
 	config/locales/ca.yml
 	config/locales/en.yml
 	config/locales/es.yml
 	config/locales/fr.yml
 	config/locales/nl.yml
 	config/locales/pl.yml
 	config/locales/pt-BR.yml
 	config/themes.yml

app/models/status.rb

@@ -3,13 +3,13 @@
 #
 # Table name: statuses
 #
-#  id                     :integer          not null, primary key
+#  id                     :bigint(8)        not null, primary key
 #  uri                    :string
 #  text                   :text             default(""), not null
 #  created_at             :datetime         not null
 #  updated_at             :datetime         not null
-#  in_reply_to_id         :integer
-#  reblog_of_id           :integer
+#  in_reply_to_id         :bigint(8)
+#  reblog_of_id           :bigint(8)
 #  url                    :string
 #  sensitive              :boolean          default(FALSE), not null
 #  visibility             :integer          default("public"), not null
@@ -18,11 +18,11 @@
 #  favourites_count       :integer          default(0), not null
 #  reblogs_count          :integer          default(0), not null
 #  language               :string
-#  conversation_id        :integer
+#  conversation_id        :bigint(8)
 #  local                  :boolean
-#  account_id             :integer          not null
-#  application_id         :integer
-#  in_reply_to_account_id :integer
+#  account_id             :bigint(8)        not null
+#  application_id         :bigint(8)
+#  in_reply_to_account_id :bigint(8)
 #  local_only             :boolean
 #  full_status_text       :text             default(""), not null
 #
@@ -62,6 +62,7 @@ class Status < ApplicationRecord
   validates :uri, uniqueness: true, presence: true, unless: :local?
   validates :text, presence: true, unless: -> { with_media? || reblog? }
   validates_with StatusLengthValidator
+  validates_with DisallowedHashtagsValidator
   validates :reblog, uniqueness: { scope: :account }, if: :reblog?
 
   default_scope { recent }
@@ -164,7 +165,7 @@ class Status < ApplicationRecord
   end
 
   def emojis
-    CustomEmoji.from_text([spoiler_text, text].join(' '), account.domain)
+    @emojis ||= CustomEmoji.from_text([spoiler_text, text].join(' '), account.domain)
   end
 
   after_create_commit :store_uri, if: :local?