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

Conflicts:
- `Gemfile.lock`:
  Not a real conflict, just a glitch-soc-only dependency too close to a
  dependency that got updated upstream. Updated as well.
- `app/models/status.rb`:
  Not a real conflict, just a change too close to glitch-soc-changed code
  for optionally showing boosts in public timelines.
  Applied upstream changes.
- `app/views/layouts/application.html.haml`:
  Upstream a new, static CSS file, conflict due to glitch-soc's theming
  system, include the file regardless of the theme.
- `config/initializers/content_security_policy.rb`:
  Upstream dropped 'unsafe-inline' from the 'style-src' directive, but
  both files are very different. Removed 'unsafe-inline' as well.

1 files changed, 1 insertions, 1 deletions

diff --git a/db/migrate/20171125031751_add_invite_id_to_users.rb b/db/migrate/20171125031751_add_invite_id_to_users.rb
index 16829f866..9cfb0c542 100644
--- a/db/migrate/20171125031751_add_invite_id_to_users.rb
+++ b/db/migrate/20171125031751_add_invite_id_to_users.rb
@@ -1,5 +1,5 @@
 class AddInviteIdToUsers < ActiveRecord::Migration[5.1]
   def change
-    add_reference :users, :invite, null: true, default: nil, foreign_key: { on_delete: :nullify }, index: false
+    safety_assured { add_reference :users, :invite, null: true, default: nil, foreign_key: { on_delete: :nullify }, index: false }
   end
 end