[aur-general] Updating MATE Packages

[Antonio Rojas]

> Quick update on my progress.  I've completed my first pass on merging
> the GTK2 and GTK3 PKGBUILD's into one.  I'm not sure on if I've handled
> dependencies correctly.  I've left the GTK2 dependencies as the main
> package depends() array and then added in the GTK3 versions needed
> depends() in its package() function.  Then I added any packages that the
> GTK3 version needed, but not the GTK2 version, to the makedepends() array.
> 

There's no need to have a top-level depends array, and in fact
 most split packages don't have one. Just drop it and move all
 build time dependencies for both versions to the makedepends
 array