Support for AIX native (.bff) packages: patch available

[Darren Tucker]

Ben Lindstrom wrote [about AIX package build]: 
> This is now included in the CVS tree since it does not have any
> current dependances, and will be included in 3.1 release.

Excellent! I've just pulled the CVS tree to run through it. I'll keep an
eye on it in future for breakage.

I have one suggestion though: chmod a+x contrib/aix/*.sh

	Thanks,
		-Daz.