Changed the example code according to the new structure
Kl.am closed it's shell
Deleted buk.me support because redirect to another Site
Deleted burnurl.com support because redirect to another Site
Deleted hurl.ws support

Due to spammers, hurl.ws will no longer shorten links. Existing links will
continue to work.
Deleted support for short.to, xr.com, urlborg.com
Partial support for Python Requests