Initial support for kde_projects.xml in kdesrc-build

[Michael Jansen]

> ahhhh. nope. kwebkitpart only depends on kdelibs! There are no
> requirements besides that. The previous requirement that you must
> build kwebkitpart before you compiled the konq-plugins, which have now
> been moved to kdebase, is now longer valid because of the addition of
> several Extentsion interfaces to the KParts API. As a result
> konq-plugins do not have direct dependency on kwebkitpart anymore in
> KDE >= 4.6...

But that requirement came and went without a great announcement. Previously 
you had to compile kwebkitpart before kdebase so you got the ability to use 
webkit with konqueror.

Those are the things that make stuff difficult to get right.

Mike