Extra Checkbox Fix

Sorry, forgot to add another set of rule for check-box/radio buttons contained in tables (the issue is occurring in 7.x-4.x)

![screenshot - 050814 - 03 44 48 highlight](https://cloud.githubusercontent.com/assets/7518186/3806038/0516825e-1c43-11e4-97c7-9aaa4e50d704.png)