add block handler to handle block files on different under file systems[Tachyon-33][SubTask 1]
modify according to comments
make close() simpler
add some negative test case
use guava's closer to replace current code path
Exclude javassist from curator-test in test scope of pom file to prevent unit test failure in TFSTest.
rename test cases for BlockHandlerLocal
fixed range check for inode file
use path separator for equals to protect against NPE
Merge pull request #397 from dcapwell/block-range-check

[TACHYON-113] fixed range check for inode file
Merge pull request #398 from dcapwell/TACHYON-114

use path separator for equals to protect against NPE
Merge pull request #396 from tkyaw/Exculde-Javassist

Exclude javassist from curator-test in test scope of pom file to prevent...
Merge pull request #395 from shimingfei/AddBlockHandler-new

add block handler to handle block files on different under file systems[Tachyon-33][SubTask 1]
remove license temporary
[TACHYON-62] Implement a Netty based DataServer
upgraded netty.  moved worker shutdown after boss.  style
got transferTo to pass tests
refactor pipeline and added commented out code for next test
enable switch between epoll and nio
testing out epol with file region