ADDED NEW .symLink() method to easily generate links like : myproject-la...

[zipang]

Because simple things should be kept simple... Thanks for a cool little tool that i dig much better than... grunt ??

This is a proposal for a method that i needed to easily keep a symlink to the latest version of my builds.

Usage :

buildify("../js/")
  /* build the suff */
  .save('mycoolstuff-' + version + '.js')
  .symLink('mycoolstuff-' + version + '.js', 'mycoolstuff-latest.js');

[powmedia]

Looks good to me, would you be able to add a test and update the readme to show the usage example?