Revert my puny changes for now.

Will be fixed in travis-web.

lib/travis/api/app/endpoint/builds.rb

@@ -6,12 +6,11 @@ class Travis::Api::App
       get '/' do
         name = params[:branches] ? :find_branches : :find_builds
         params['ids'] = params['ids'].split(',') if params['ids'].respond_to?(:split)
+        respond_with service(name, params)
+      end
 
-        if params['ids'].blank?
-          respond_with({})
-        else
-          respond_with service(name, params)
-        end
+      get '/:id' do
+        respond_with service(:find_build, params)
       end
 
       post '/:id/cancel' do