Revision 493811

o lining up all the uses of modello and using 1.0-alpha-13 of the modello plugin everywhere                                         
o add the generation of a JDOMWriter for use in the embedder so that working with models doesn't                                    
  completely whack the existing XML, and allow for outputting the namespace declarations                                            
o add a security manager to the embedder which is off by default but will barf if someone                                           
  tries to set system properties. you have to specifically turn this on because it will more then                                   
  likely break tons of code like xerces setting a system property named "version", nice.