[Distutils] patch for more SWIG support

[Lars Immisch]

Dear Anthony,

>> http://sourceforge.net/tracker/index.php?func=detail&aid=1046644&group_id=5470&atid=105470 
> 
> This has been applied, and will be in 2.4b1

Nice! Thanks.

I have also submitted a patch for the documentation.

It is at 
http://sourceforge.net/tracker/index.php?func=detail&aid=1046945&group_id=5470&atid=105470

I like it, but it *documents* distutils SWIG support and thus raises 
expectations about the interface being stable.

Apply as you see fit ;-)

- Lars