Added a quiet option to Hydra for RemoteTask.
Updated Hydra trace to take a block for a message instead of just a string.
Updated Hydra kill_external_process_pid to be more graceful since we need stats from spork.
Updated hydra to use a spork wrapper I wrote in order to load simplecov as early as possible.
Updated hydra to kill spork processes on shutdown since we need their coverage numbers.
Bumped Hydra gem version.