I had RBrowser download the file to my editing directory, and then I returned to jEdit. When the RBrowser download completed, I received the following message within jEdit:

I'm not sure if this is a native feature of OS X (doubtful) or something that is written into jEdit (probably), but whichever it is, it's very cool and useful! No longer will I edit and save a file, only to then remember that I had downloaded a newer version sometime earlier.

