Curly braces parser greediness

A simple template like `{{value}}}` fails compilation:

```
com.github.jknack.handlebars.HandlebarsException: inline@481dc12c:1:7: found: '}}}', expected: '}}'
{{value}}}
```

I'm wondering if that is expected behaviour? Because I'd expect that in the output the extra `}` at the last position is simply kept as-is.