snimavat/html-cleaner — pull request #6 by ishults (2014-07-22 19:14:45+00:00)
Title: Resolve issue #5.  Add addProtocol support to Config.

This allows for adding protocols via something like:

```
allow('a') {
protocols key: 'href', values: ['http', 'https']
// Or
protocols key: 'href', values: 'http'
}
```