Direct messages column (#4514)

* Added a timeline for Direct statuses
* Lists all Direct statuses you've sent and received
* Displayed in Getting Started
* Streaming server support for direct TL

* Changes to match other timelines in 2.0

app/javascript/mastodon/locales/nl.json

@@ -40,6 +40,7 @@
   "bundle_modal_error.retry": "Opnieuw proberen",
   "column.blocks": "Geblokkeerde gebruikers",
   "column.community": "Lokale tijdlijn",
+  "column.direct": "Direct messages",
   "column.domain_blocks": "Hidden domains",
   "column.favourites": "Favorieten",
   "column.follow_requests": "Volgverzoeken",
@@ -100,6 +101,7 @@
   "emoji_button.symbols": "Symbolen",
   "emoji_button.travel": "Reizen en plekken",
   "empty_column.community": "De lokale tijdlijn is nog leeg. Toot iets in het openbaar om de bal aan het rollen te krijgen!",
+  "empty_column.direct": "You don't have any direct messages yet. When you send or receive one, it will show up here.",
   "empty_column.hashtag": "Er is nog niks te vinden onder deze hashtag.",
   "empty_column.home": "Jij volgt nog niemand. Bezoek {public} of gebruik het zoekvenster om andere mensen te ontmoeten.",
   "empty_column.home.public_timeline": "de globale tijdlijn",
@@ -154,6 +156,7 @@
   "mute_modal.hide_notifications": "Verberg meldingen van deze persoon?",
   "navigation_bar.blocks": "Geblokkeerde gebruikers",
   "navigation_bar.community_timeline": "Lokale tijdlijn",
+  "navigation_bar.direct": "Direct messages",
   "navigation_bar.domain_blocks": "Hidden domains",
   "navigation_bar.edit_profile": "Profiel bewerken",
   "navigation_bar.favourites": "Favorieten",
@@ -238,6 +241,7 @@
   "search_results.total": "{count, number} {count, plural, one {resultaat} other {resultaten}}",
   "standalone.public_title": "Een kijkje binnenin...",
   "status.block": "Blokkeer @{name}",
+  "status.cancel_reblog_private": "Unboost",
   "status.cannot_reblog": "Deze toot kan niet geboost worden",
   "status.delete": "Verwijderen",
   "status.direct": "Direct message @{name}",
@@ -253,6 +257,7 @@
   "status.pin": "Aan profielpagina vastmaken",
   "status.pinned": "Vastgemaakte toot",
   "status.reblog": "Boost",
+  "status.reblog_private": "Boost to original audience",
   "status.reblogged_by": "{name} boostte",
   "status.reply": "Reageren",
   "status.replyAll": "Reageer op iedereen",