fix of the bin/format.sh error.
Merge pull request #38 from hobinyoon/master

fix of the bin/format.sh error.
better underfs util.
specify mount size for linux ramfs.
s3n support
conform to the coding style
Merge pull request #40 from hobinyoon/master

s3n support
code in code blocks
1. Add "Location" command into TFSShell
2. Enable "FileInfo" command in TFSShell
3. Fix a spell mistake in TachyonFS.java
fix a cleanpath non-pointer exception bug.
fix the build
Merge pull request #41 from hobinyoon/master

code in code blocks
Merge branch 'master' of github.com:amplab/tachyon
tweak
bump de.javakaffee version to match spark.
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