Just for testing or quick grabs it would be good to have an option to pass a URL on the command line.
This is a great suggestion, that I should have added from the beginning. Honestly, no idea why I didn't. It also forced me to clean up my code a lot, something I was just being a little lazy about, so it was good to go do that. Thanks for requesting this, definitely a great idea.
Also, I don't know if it's bad "github" practice to close an issue after I think it's fixed, but you haven't verified. Hopefully not, but if any of these are broken or not completely implemented, let me know and I'll get right on it.
Thanks again for all the help testing and suggesting good features.