Constructor
@param className {String|String[]} classname(s) to generate
@param theme {String} the theme classname
function(className, theme) {
    this.base(arguments);
    this.__applications = [];
    if (className) {
      var app = new qx.tool.compiler.app.Application(className);
      if (theme) {
        app.setTheme(theme); 
      }
      this.addApplication(app);
    }
  }