Bumped to 5.3 in preparation for next release.
Improve docstring ReST markup in path.py
Minor tweaks to README.rst
Merge pull request #64 from Zearin/readme-tweaks

Minor README tweaks
Merge pull request #63 from Zearin/doc-tweaks

Improve docstring ReST markup in path.py
Add support for sphinx_build command.
Merge
added first stub of hdfs_path
added 'pure path' tests to test_hdfs_path
added relpath
added listdir
added tests for {,walk}{,dirs,files}
added open and test for bytes