patterns directory gone from top level of logstash v1.5.2

We used to be able to add our own local patterns into the top level patterns directory in logstash (v1.4.2). That seem to have been moved deep inside the gems directory (found in vendor/bundle/jruby/1.9/gems/logstash-patterns-core-0.1.10/patterns/).

If that is the case, please add a --patterns flag where we can specify additional patterns directory.

Our current workaround is to create a symlink from the deep patterns dir back to the top level of logstash. Ugly, but allow us to get existing configs working again.