Credits

* Add Knut Petter Svendsen
* Fix Peter Kümmel's name

Change-Id: I43f2cb35b6b0ac51d8f2a0e91539910382167f62
Reviewed-by: Peter Kümmel <syntheticpp@gmx.net>
Reviewed-by: Knut Petter Svendsen <knutpett@pvv.org>
Reviewed-by: Eike Ziller <eike.ziller@digia.com>

dist/changes-2.6.0

@@ -196,6 +196,7 @@ Credits go to:
     Kaffeine
     Kai Köhne
     kh1
+    Knut Petter Svendsen
     Konstantin Ritt
     Konstantin Tokarev
     Leandro Melo
@@ -214,7 +215,7 @@ Credits go to:
     Orgad Shaneh
     Oswald Buddenhagen
     Oto Magaldadze
-    Peter Kuemmel
+    Peter Kümmel
     Pierre Rossi
     Robert Loehning
     Ryan May