Move timelines API from statuses to its own controller, add a check for

resources that require a user context vs those that don't (such as public timeline)

/api/v1/statuses/public   -> /api/v1/timelines/public
/api/v1/statuses/home     -> /api/v1/timelines/home
/api/v1/statuses/mentions -> /api/v1/timelines/mentions
/api/v1/statuses/tag/:tag -> /api/v1/timelines/tag/:tag

config/routes.rb

@@ -55,13 +55,6 @@ Rails.application.routes.draw do
     # JSON / REST API
     namespace :v1 do
       resources :statuses, only: [:create, :show, :destroy] do
-        collection do
-          get :home
-          get :mentions
-          get :public
-          get '/tag/:id', action: :tag
-        end
-
         member do
           get :context
           get :reblogged_by
@@ -74,6 +67,15 @@ Rails.application.routes.draw do
         end
       end
 
+      resources :timelines, only: [] do
+        collection do
+          get :home
+          get :mentions
+          get :public
+          get '/tag/:id', action: :tag
+        end
+      end
+
       resources :follows,  only: [:create]
       resources :media,    only: [:create]
       resources :apps,     only: [:create]