Shopify/liquid — pull request #256 by fw42 (2013-09-11 14:03:39+00:00)
Title: Fix handling of unknown tags in comments

Fixes this:
```
>> Liquid::Template.parse("{% comment %} {% whatever %} {% endcomment %}")
Liquid::SyntaxError: Unknown tag 'whatever'
```

Please review @Sirupsen @dylanahsmith