WICKET-5676 Double click causes internal error using AjaxFallbackDefaultDataTable

Revert the usage of AjaxChannel.ACTIVE for Ajax navigation links
WICKET-5679 RenderStrategy REDIRECT_TO_RENDER lets fail test with BaseWicketTester#startComponentInPage

(cherry picked from commit c3795bd0ed0df1a9e73fcba37cf911192307dbe1)
WICKET-5654 DefaultViolationTranslator should maybe use getMessage()
removed scope, since it is no longer used; path is absolute already
Small compilation problem: IRequestCycleSettings instead of
RequestCycleSettings