[kdevplatform] d3af706 Increase KDE requirement to 4.4 to fix the build f

[Niko Sams]

> And guys, it's rather easy to get Kate from 4.5 setup nowadays thanks to the
> Kate on Git repo:
>
> http://gitorious.org/kate
>
> All you need to do in order to link against it properly is symlinking it's
> headers (dunno about the libs) into your (maybe stable) kdelibs. I do that
> since some time and it works like a charm.
I have installed kate in my home, what symlinks do I have to create so that
it is used by kdevelop?

If it is really that easy to use kate git + kde 4.4 I'd say it's no problem to
have that as a requirement for master.

Niko