more debugging output for local worker, don't do extra copy between temp directory
move all the workqueue logic out of RemoteMachine to simplify this code; rely on custom scripts (e.g., dispatch-q.py) instead to wrap existing workqueue code
clean up PoolMachine logic (now that each RemoteMachine is homogenous)
in worker, more verbose output about exceptions; initial version of Torque dispatcher
update default config.json
Merge pull request #2 from codalab/pliang

refactor worker system to use dispatchers