new args

Changed from 3 to 4 args.  A base URL is now needed, this will join with the second part of the URL that is specified in the regex.  There is probably a better way to do this with regex, grabbing the beginning part, at least with this way, you can be exact with your URL.

![ad0b92n_460sa](https://f.cloud.github.com/assets/1492067/2181827/e68f34ec-9769-11e3-981e-2b7163dac97d.gif)