/**
* Creates standard traits for tag file entity from CMDocument metadata
* @param ns
*/
protected void createTagfileTraits(final Namespace ns) {
Model model = getMergedModel();
createSimpleStringEntityTraitIfNecessary(model, "display-label", getNamespaceDisplayLabel()); //$NON-NLS-1$
createSimpleStringEntityTraitIfNecessary(model, "description", getNamespaceDescription()); //$NON-NLS-1$
createSimpleStringEntityTraitIfNecessary(model, "default-prefix", getNamespaceDefaultPrefix()); //$NON-NLS-1$
createSimpleBooleanObjectEntityTraitIfNecessary(model, "expert", getNamespaceExpert()); //$NON-NLS-1$