OpenSCAD Wedge Module/Library

I needed a wedge shape in openSCAD. There is no native functionality for a wedge, and I was surprised to see that none existed as a module. I figured I'd release what I came up with.

It's really simple and thrown together and I welcome more functional or feature-rich derivatives or patches that improve upon this.

UPDATE: I updated the file, commenting out the module call at the bottom. I hadn't actually included this in a project yet and hadn't remembered that was still turned on. Now it works properly as a module without having to modify the file.