Issue title: Wicket 6.29.0 is out. When Wicketstuff will be aligned?
 Issue body: No hurry, just to know :)
 Comments: 
 Comment 0: Hello,
wicketstuff 6.29.0 has no changes comparing to 6.28.0
Do you still need the release?
 Comment 1: Well, in our code we set the version once for all the Wicket & Wicketstuff dependency. It seemed that they always come along, but if it's not we'll keep them separated
 Comment 2: I can create release
But not sure if it is required :(
The changelog will be empty :(
 Comment 3: Thanks!

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