TACHYON-8 TACHYON-193 TACHYON-194 First drop of Tachyon neo configuration
Move constant only used for test to TachyonConfTest class.
Fix typo in constant.
Merge pull request #534 from hsaputra/neo_configuration

TACHYON-193 TACHYON-194 First drop of Tachyon neo configuration
Merge branch 'master' into conf
Actually use TachyonConf to replace CommonConf and MasterConf. Fix unit test for TachyonConf for boolean and bytes.
Fix TachyonConfTest for default journal path
Fix unit tests.
Move String constants from TachyonConf to Constants class. Some fixes to move CommonConf and MasterConf to use TachyonConf for secure HDFS.
Remove some unneeded new TachyonConf() calls. Replace rest of MasterConf.get call with TachyonConf.
Remove MasterConf class since it is no longer referenced in the code.
Address review comments:
-) Move creation of TachyonConf as early as possible.
-) Resolve unit tests to test
-) Remove set and get system properties for master configurations.
-) Set private variable of TachyonConf to final if possible.
Fix some formatting. Move the TachyonConf information from MasterInfo to Dependency.loadImage as review.
Merge pull request #551 from hsaputra/move_to_neo_tachyon_conf

[WIP] TACHYON-8 TACHYON-194 Move some MasterConf and CommonConf usages to use TachyonConf
TACHYON-198 Remove Reference to UserConf from the code.
TACHYON-198 Next stop, remove UserConf class.
TACHYON-198 Fix TestDFSIO to pass TachyonConf to TFS.
TACHYON-198 Address comments from pull requests.
Add helper method to return default user write type from TachyonConf.
Add JavaDoc to helper methods in TachyonConf to store and load from Hadoop Configuration.