gtk2-pixbuf installed by default

[McLovin]

I think that having these installed by default would make alot of sense, as I have wondered why themes would not work in the past, and I am sure that there are some new Linux user who have, or would, wonder the same thing. Granted installing them is no big deal, as long as you know that you need to do so, if you don't, then it can be frustrating trying to apply a theme, (and alot of themes use that engine) and just have looking all ugly and blocky. This one of the very first things I do after an install, only second to getting all my drivers installed.