Merge branch 'remove_runit_files_when_service_is_disabled' into 'master'

When a service is disabled, remove its runit files.

When a service gets disabled it is safe to cleanup all the files. Not doing so can create problems in certain cases once the service is enabled again. 

See merge request !573

files/gitlab-cookbooks/runit/definitions/runit_service.rb

@@ -208,5 +208,10 @@ define :runit_service, :directory => nil, :only_if => false, :finish_script => f
     link service_dir_name do
       action :delete
     end
+
+    directory sv_dir_name do
+      recursive true
+      action :delete
+    end
   end
 end