No -U option to auto update to the latest version

[javier-lopez]

Just as youtube-dl I think it could be a great idea if AlienFeed could autoupdate itself once installed.

I plan to package this program for debian|ubuntu, however once it gets packaged there will be paperwork to do in order to update it, an option to auto update would be a great workaround for people who cannot wait.

[jawerty]

I suppose that would be a good idea. I would make it only for pypi though, but I can work on that today. Thanks for the idea.