Web UI support for the new omnisearch

app/views/api/v1/search/index.rabl

@@ -1,6 +1,6 @@
 object @search
 
-child accounts: :accounts do
+child :accounts, object_root: false do
   extends 'api/v1/accounts/show'
 end
 
@@ -8,6 +8,6 @@ node(:hashtags) do |search|
   search.hashtags.map(&:name)
 end
 
-child statuses: :statuses do
+child :statuses, object_root: false do
   extends 'api/v1/statuses/show'
 end