code: function (path, onDone) {
  
  	SR.fs.readFile(path, "binary", function (err, data) {
  		if (err) {
  			UTIL.safeCall(onDone);
  		}
  		else {
  			UTIL.safeCall(onDone, data);			
  		}
  	});
  }
docs: read a particular file and returns file or undefined (if not found)