1. Add "Location" command into TFSShell
2. Enable "FileInfo" command in TFSShell
3. Fix a spell mistake in TachyonFS.java
corrected the code style and remove the nnecessary thrown Expections
correct the code style:)
correct code style:)
add unit tests for locaion and fileinfo
correct code style
Merge pull request #42 from RongGu/master

 Add "Location" command into TFSShell as well as some minor fixes