Autogeneration of JS bindings is a go!

There's good news to report today, I added the first autogenerated binding to the CVS last night! The binding provides access to QDir but the tool is generic and should work on anything we can access as a JSOpaqueProxy (this limitation will be lifted later). There are still some rough edges, and the constructor functions aren't autogenerated yet but basically it works.

The next step will be to clean things up a little and to add support for default function arguments. This should be pretty simple.