[Kst] Kst 2.0.0 rc1

[Peter Kümmel]

>> Peter, can you make sure it gets pushed to the KDE servers?

I've updated the webpage which now points to sourceforge for Kst 2.
This has the advantage of having a download statistic.

I changed the webpage in the sense of having two stable Kst
versions, 1 and 2. Because of not being able to open Kst1
files with Kst2 I assume it is a reason for some people not
to use Kst2.

Also please have a look at the pages, if you find anything,
it could be changed easily.

Peter