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

Conflicts:
- README.md
  discarded upstream changes
- app/controllers/api/v1/bookmarks_controller.rb
  finally merged upstream, some code style fixes
  and slightly changed pagination code
- app/controllers/application_controller.rb
  changed upstream to always return HTML error pages
  slight conflict caused by theming code
- app/models/bookmark.rb
  finally merged upstream, no real conflict
- spec/controllers/api/v1/bookmarks_controller_spec.rb
  finally merged upstream, slightly changed pagination code

app/javascript/mastodon/locales/pl.json

@@ -39,7 +39,7 @@
   "account.unmute": "Cofnij wyciszenie @{name}",
   "account.unmute_notifications": "Cofnij wyciszenie powiadomień od @{name}",
   "alert.rate_limited.message": "Spróbuj ponownie po {retry_time, time, medium}.",
-  "alert.rate_limited.title": "Rate limited",
+  "alert.rate_limited.title": "Ograniczony czasowo",
   "alert.unexpected.message": "Wystąpił nieoczekiwany błąd.",
   "alert.unexpected.title": "O nie!",
   "autosuggest_hashtag.per_week": "{count} co tydzień",
@@ -307,7 +307,7 @@
   "poll.total_people": "{count, plural, one {# osoba} few {# osoby} many {# osób} other {# osób}}",
   "poll.total_votes": "{count, plural, one {# głos} few {# głosy} many {# głosów} other {# głosów}}",
   "poll.vote": "Zagłosuj",
-  "poll.voted": "You voted for this answer",
+  "poll.voted": "Zagłosowałeś_aś na tą odpowiedź",
   "poll_button.add_poll": "Dodaj głosowanie",
   "poll_button.remove_poll": "Usuń głosowanie",
   "privacy.change": "Dostosuj widoczność wpisów",