Attempt to lower the number of resources consumed while running tests
recompute uses thread pool now
Fixed backwards compatability issues after TachyonURI went in
remove from cluster
Merge pull request #474 from dcapwell/resourcecleanup

Attempt to lower the number of resources consumed while running tests
Merge pull request #483 from dcapwell/backwardscompatability

Fixed backwards compatability issues after TachyonURI went in