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

Conflicts:
- app/models/media_attachment.rb
  Upstream added audio attachment support
- app/serializers/initial_state_serializer.rb
  Upstream added audio attachment support and how mimetypes are returned
- app/serializers/rest/instance_serializer.rb
  Upstream added a few fields
- config/application.rb
  Upstream added a different paperclip transcoder

config/routes.rb

@@ -409,6 +409,29 @@ Rails.application.routes.draw do
       namespace :push do
         resource :subscription, only: [:create, :show, :update, :destroy]
       end
+
+      namespace :admin do
+        resources :accounts, only: [:index, :show] do
+          member do
+            post :enable
+            post :unsilence
+            post :unsuspend
+            post :approve
+            post :reject
+          end
+
+          resource :action, only: [:create], controller: 'account_actions'
+        end
+
+        resources :reports, only: [:index, :show] do
+          member do
+            post :assign_to_self
+            post :unassign
+            post :reopen
+            post :resolve
+          end
+        end
+      end
     end
 
     namespace :v2 do