Fixed loadufs exclude

We were searching the exclude path list with the underfsAddress
prepended to the path, which isn't how they were in the list.
Fix for issue #111
Enable user input to override the web resources directory.
Merge pull request #125 from timothysc/tachyon-111

Fix for issue #111
Merge pull request #121 from manugoyal/master

Fixed loadufs exclude
sync under fs related doc, fixes et.
speedup unit tests
Add integration test over hdfs ufs.
redirect the stdout of tests to file
identation fix
Add an integration test for UnderfsUtil