Created bower package. (added bower.json)

I have also created bower CO package, so now it's easy to start using generators just by:

bower install co
bower install regenerator

and then

<html>
<head>
  <script src="bower_components/setimmediate/setimmediate.js"></script>
  <script src="bower_components/co/co.js"></script>
  <script src="bower_components/regenerator/runtime/min.js"></script> -->
  <script src="myscript.js"></script>
 </head>
 <body></body>
 </html>

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I think it's better to maintain bower package in the main repository rather than in my fork.