more docs
doc for data service
Merge branch 'master' into worker-doc
added findbugs support
findbugs warnings
more findbugs
adding exclude
returned readLocalByteBuffer
added docs for findbugs
Merge pull request #301 from dcapwell/findbugs

Findbugs
Per discussion in ML, update UnderFileSystemHdfs class to throw IOException as is instead of wrapping it as runtime.
This will follow the abstract method definitions that could throw IOException instead.
Revert accidental commit to return empty String array to back to null (will address it with differetn PR)
Update README.md
Update index.md
Merge pull request #304 from hsaputra/change_runtime_to_io_exception_underfshdfs

Update UnderFileSystemHdfs class to throw IOException instead of Throwables.propagate(te)
Merge pull request #295 from dcapwell/worker-doc

Worker doc