simplify getOpType by using Enum's static function valueOf
Attempt to lower the number of resources consumed while running tests
recompute uses thread pool now
update documents to have a underfs page
made kill command be more polite
refactor according to comments
remove getOpType
Merge pull request #479 from dcapwell/nicekill

made kill command be more polite
Merge pull request #478 from shimingfei/simplifyGetOpType

simplify getOpType by using Enum's static function valueOf
Add suppress rule for Tachyon *Conf classes to exempt the public final members as all upper cases.
proper cleanup of resources in recompute command
Merge pull request #484 from dcapwell/closeresourcesinrecompute

proper cleanup of resources in recompute command
Merge pull request #481 from hsaputra/addexception_checkstyle_conf

Add suppress rule for Tachyon *Conf classes
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
switched to fixed thread pools for heart beats