Config files should use a POSIX style search path

[nuvious]

Hey, trying to integrate this into a blockchain project and the configuration file convention is a bit clunky. Ideally there should be a search path set of directories that the application looks through and if it finds none it creates a template in the user space while giving an appropriate warning to the user in the logs.

I plan on addressing this via PR and intend to keep backwards compatibility with config/config.ini convention as well as cross platform support between POSIX and Windows systems.

[nuvious]

Pull request submitted (#5). I also had to do some other changes to modernize the code a bit to work in current python builds.