NoriXml should dynamically load Element classes.
NoriXml should dynamically load Element classes.

This now includes all Element subclasses but has a blacklist of abstract classes. Ideally, the abstract classes should be filtered out by reflection, but alas, the Crayon reflection is not this versatile yet.

blakeohare/crayon,blakeohare/crayon,blakeohare/crayon,blakeohare/crayon,blakeohare/crayon,blakeohare/crayon,blakeohare/crayon,blakeohare/crayon