Highlighting Support for the Spin Language #232

I am part of team that is putting a library for Spin code onto Google Code. We 
would like syntax highlighting for the Spin language (a Python like language 
for the Propeller microcontroller from Parallax.com).

I have attached a .lang file to this issue. This is the syntax highlighting for 
the GTK Source View system. If a list of keywords would be more appropriate 
then I can provide that too.

Here is a link to some example code for Spin: 
http://www.parallaxsemiconductor.com/sites/default/files/parallax/Gold-Standard_
2.zip

More code can be found at obex.parallax.com (any of the files will do).

One note about the highlighting: the block comment of Spin is a bit odd. There 
are two versions:

{ block comment type 1 }
{{ block comment type 2 }}

A block comment has either one curly brace or two. A double {{ comment could be 
incorrectly parsed as a single { followed by (as part of the comment) another 
{. Then, the last } of the }} pair would be incorrectly highlighted as part of 
the code, rather than the closing part of the comment. The .lang file gets 
around this by defining the {{/}} comment first. It seems to work, but I don't 
know if this a defined feature of Source View or not.