Move locale files from language pack to extension. (#21)

extensions/sticky/locale/en.yml

@@ -0,0 +1,37 @@
+flarum-sticky:
+
+  ##
+  # UNIQUE KEYS - The following keys are used in only one location each.
+  ##
+
+  # Translations in this namespace are used by the admin interface.
+  admin:
+
+    # These translations are used in the Permissions page of the admin interface.
+    permissions:
+      sticky_discussions_label: Sticky discussions
+
+  # Translations in this namespace are used by the forum user interface.
+  forum:
+
+    # These translations are displayed as tooltips for discussion badges.
+    badge:
+      sticky_tooltip: => flarum-sticky.ref.sticky
+
+    # These translations are used by the discussion control buttons.
+    discussion_controls:
+      sticky_button: => flarum-sticky.ref.sticky
+      unsticky_button: Unsticky
+
+    # These translations are displayed between posts in the post stream.
+    post_stream:
+      discussion_stickied_text: "{username} stickied the discussion."
+      discussion_unstickied_text: "{username} unstickied the discussion."
+
+  ##
+  # REUSED TRANSLATIONS - These keys should not be used directly in code!
+  ##
+
+  # Translations in this namespace are referenced by two or more unique keys.
+  ref:
+    sticky: Sticky