Add check for empty String for the local directory in addition to null.
Add logging to detect why return null.
made examples callable and added the error handling to a function
Merge pull request #465 from dcapwell/exampleRewrite

made examples callable and added the error handling to a function
format
change path in StorageDir from String to TachyonURI
remove deprecation  in DataServerHandler
Merge pull request #468 from shimingfei/PathToTachyonURI

change path in StorageDir from String to TachyonURI
Merge pull request #469 from jinntrance/removeDeprecation

remove deprecation  in DataServerHandler
Should not overwrite previous $CLASSPATH

Minor change to pom.xml file
(cherry picked from commit afecdfc)

Minor change to pom.xml file

made examples callable and added the error handling to a function

format

change path in StorageDir from String to TachyonURI
rename WorkerSpaceCounter to SpaceCounter
Merge pull request #463 from pfxuan/maven

Minor change to pom.xml file
Merge pull request #470 from shimingfei/RenameWorkerSpaceCounter-new

rename WorkerSpaceCounter to SpaceCounter
wrong param name in comment
turned off krb so mac users using java 7 can run tests
Merge pull request #476 from dcapwell/testdfsio-mac

turned off krb so mac users using java 7 can run tests
Merge pull request #475 from CrazyJvm/StorageDir-comment

StorageDir : wrong param name in comment
Merge pull request #439 from hsaputra/add_logging_localtempfolder

Add check for empty String for the local directory in addition to null and add logging.
tweak TachyonFS logging.
Add checkstyle support for Google code style.

Add checktyle 2.8 to the maven checkstyle plugin to be able to corretly parse Google Java style rules.

First drop to fix code based on Google style.

Fix unit tests fail.
Fix rules on imports.