bug fix for new test in TachyonURITest
Remove log4j.properties from test-jar.
Merge pull request #571 from rmetzger/test-jar

Remove log4j.properties from test-jar.
Client doesnt depend on commons-lang, this is only provided by hadoop which is removed
Merge pull request #572 from dcapwell/dependenyIssueForClient

Client doesnt depend on commons-lang, this is only provided by hadoop wh...
TACHYON-253 Add volatile modifier for EditLogProcessor.mIsStandby to make sure it read/write from main memory.
Simple typo fix of the JournalTest.CompletedEditLogDeletionTest method name.
Merge pull request #576 from hsaputra/fix_typo_CompletedEditLogDeletionTest_method

Simple typo fix of the JournalTest.CompletedEditLogDeletionTest method name
Merge pull request #575 from hsaputra/TACHYON-253_add_volatile

TACHYON-253 Add volatile modifier to EditLogProcessor.mIsStandby to guarantee visibility
Merge pull request #569 from uronce-cc/TACHYON-240

[TACHYON-240] bug fix for new join test in TachyonURITest
Refactored RemoteBlockInStream

The code was convoluted, so I cleaned it up. Also the readByteBuffer
code in TachyonFile was copying almost all the logic from
RemoteBlockInStream, so I just exposed the necessary methods in
RemoteBlockInStream for TachyonFile to call.
Fixed bug in RemoteBlockInStream

I had to seek to the beginning of the block when initializing the
checkpoint input stream.
close TachyonFS when closing AbstractTFS
Merge pull request #578 from shimingfei/CloseTachyonFS

close TachyonFS when closing AbstractTFS
remove unused FileDoesNotException for getFileStatus - thrift change
remove unused FileDoesNotException for getFileStatus - non-thrift change
Merge pull request #580 from shimingfei/RemoveExceptionForGetFileStatus

Remove exception for get file status
Replaced usage of 'slave' to 'worker' in Tachyon deployments. Updated scripts in bin/ appropriately. Renamed 'slaves' files to 'workers'. Updated the docs.
Merge pull request #582 from abhirajbutala/tachyon-213

[TACHYON-213] Replaced usage of 'slave' to 'worker' in Tachyon deployments.
Merge pull request #559 from manugoyal/remote-read-code

Refactored RemoteBlockInStream