jquery/jquery-migrate — pull request #30 by kavu (2013-03-13 12:32:31+00:00)
Title: [PoC] Add jQuery.migrateWarnCallback feature

The reason why I added this, is that with such callback I can notify some exception tracking service with deprecation messages. For example — notifying [rollbar.com](https://rollbar.com):

```js
$.migrateWarnCallback = function(msg) {
_rollbar.push({
level: 'error',
msg: "JQMIGRATE: " + msg
});
};
```

Thanks!