Palette and Wizard use <div>s instead of <table> markup

"For these components markup is changed from <table> to nested <div>s. Wizard's previous "default" CSS styling is no longer supported, Palette offers an optional styling via org.apache.wicket.extensions.markup.html.form.palette.theme.DefaultTheme."
Impact: medium, the new markup may break styling and/or automated tests. Wizard is used in the RemodelDialog. Palette is used by the DynamicMultiSelectPlugin and the Taxonomy plugin.