Fix typo and ambiguous/outdated language in README.
Make generate_library.py take resource not url.

Change generate_library.py to accept the full URI of the resources.json
file instead of bits and pieces to construct it. This will make the
generator more flexible and more impervious to potential changes to the
location of the resource files.
Make libraries take api_url instead of port and host.

Change all the libraries to accept the full base of the URL which is the
location of Asterisk's REST API instead of the port, protocol, and host.
This will make the libraries more flexible in case things change in the
future.
Make asteriskpy.py get a better pylint score.
Clarify some debugging in python REST API class.