ClassIDs are now actually typeinfo name pointers.

I'll see, next, about the `instanceOf` thing, and going with
more normal RTTI routes.

dw/table.cc

@@ -29,12 +29,12 @@ using namespace lout;
 namespace dw {
 
 bool Table::adjustTableMinWidth = true;
-int Table::CLASS_ID = -1;
+std::intptr_t Table::CLASS_ID = -1;
 
 Table::Table(bool limitTextWidth)
 {
    DBG_OBJ_CREATE ("dw::Table");
-   registerName ("dw::Table", &CLASS_ID);
+   registerName ("dw::Table", typeid(*this), &CLASS_ID);
    setButtonSensitive(false);
 
    this->limitTextWidth = limitTextWidth;