Deleting an exclude rule fails

***Reproducing***

- Open excludes
- add an excludes rule
- click remove

This triggers the below JS error

![screenshot 2014-03-29 08 11 57](https://cloud.githubusercontent.com/assets/30460/2558109/fc6692f4-b732-11e3-9c48-3725a07e4a3c.png)

caused by this statement
`$.colorbox.resize( resize_options );`