Implement Application Configuration and Update NMAP Module to Use It.

[briandowns]

Implemented a configuration class that reads an INI file which turns the sections into class attributes and adds the sections contents as a dicts for the values.

configobj was used rather than configparser so we have the ability to implement configuration validation when testing coverage is necessary.

The NAMP module has been updated use the configuration.

Please review and discuss prior to merge for safety's sake.

This is for #23 .