Allow configuration of url-path

[remold]

To add pyFF as a service 'on top' of a existing website we like to use apache mod-proxy. Using mod-proxy we need to rewrite the html-code since there is already content in the docroot of the webserver.

When pyFF can serve webpages when accessed via http:////* (instead of http:///* no rewrite is necessary.

We know there are other options, but those are more complex and require more configuration.

[leifj]

Pull request?

[leifj]

I'm going to close this issue since pyFF is about to drop cherrypy in favor of flask/pygments making it much easier to integrate the pyFF api into existing sites.