Altitude GET forms

> Hi all,
>
> I just committed some changes to Altitude that make it possible to use
> forms with the GET method. (Radical, eh?)
>
> The new class ALUrl takes over much of the role that ALPath used to
> have, and the Locator protocol now uses urls instead of paths:
> #urlForResource: and #resourceForUrl: have replaced their path-based
> predecessors. There's a few other minor tweaks, and a bunch of new
> tests. This might break nascent Altitude apps, so if you run into
> issues, let me know.
>
> Colin
>