* Correctly specify dependency packages
Include the requests package as part of setup.py, so pip will
download and install it as a dependency.
* Update URLs to point to main harbor git repo
harbor-py was moved to the main harbor git repo in July 2016
but the URLs still point to the deprecated repository.
python modules shouldn't set the global logging level and should log
with a named logger matching the module. This allows the application
to control the logging.
