Update riak control script so that pipes are segmented per VM. 'riak attach' now uses the correct pipe even with multiple instances running.
Update riak control script so that pipes are segmented per VM. 'riak attach' now uses the correct pipe even with multiple instances running.

trung/riak-webui,trung/riak-webui,trung/riak-webui,trung/riak-webui,trung/riak-webui,trung/riak-webui,trung/riak-webui,trung/riak-webui