Bump Kustvakt version to 0.68

Change-Id: Ie4ef91793c356b0ccc9b872411943c3d9f1d9074
diff --git a/core/Changes b/core/Changes
index dca3043..57aa6ca 100644
--- a/core/Changes
+++ b/core/Changes
@@ -1,3 +1,5 @@
+# version 0.68
+
 # version 0.67.1
 
 # version 0.67