Added code to extract the machine XML version number when running DEBUG-only

modules/shared/lib/defines.js

@@ -42,6 +42,8 @@ var APPNAME = "";               // this @define is overridden by the Closure Com
  */
 var APPVERSION = "1.x.x";       // this @define is overridden by the Closure Compiler with the version in package.json
 
+var DEBUG_APPVERSION = null;    // this is set in DEBUG builds by embedMachine() if a version number was found in the machine XML
+
 /**
  * @define {string}
  */