initial commit
wip: refactor hadoop module & utils to use tachyon uri
WIP: Refactor of tachyon.hadoop
Remove old methods
Resolve conflicts
Formatting and remove makeQualified.
Resolve conflicts
Merge pull request #447 from calvinjia/tachyon-14_5

[Tachyon-14] TachyonURI (Hadoop)
Merge branch 'master' into nrr2