Unique template ID

[andyinabox]

This is an attempt to address the issue mentioned in #8. I'm appending a uuid to the template id, using UUID.js:

  var template = twig({
    id: id+'?uuid='+uuid.generate(),
    data: minified
  });

This is a pretty quick fix but I thought I'd at least throw it out there...

[dane-harnett]

Thanks for the PR @andyinabox! out of curiosity are you using this module in any projects? Any reasons for not using webpack & react?

[andyinabox]

@dane-harnett I'm prototyping with budo/browserify — not really a good use-case for react (and not a big fan of webpack).