HubSpot/messenger — pull request #14 by STRML (2013-02-26 22:33:43+00:00)
Title: Added ignoredErrorCodes to options for allow ignoring e.g. 401s

This is especially useful for hooking into Backbone. In my app, for example, I pop a login modal on 401. I don't need messenger to pop as well:

```javascript
$.globalMessenger().hookBackboneAjax({
errorMessage: "Error contacting server. Please try again.",
ignoredErrorCodes: [401]
});
```