No Column Width

Get rid of `width=blah` values from table columns (it never looks good anyway!).

This is a very simple extension that removes width attributes from <td>s & <th>s. Some websites that I must use at work use this attribute, and it makes working with them very difficult. It's possible that some websites use width attributes well. So it'd be nice if this extension allowed making a whitelist of allowed sites, but until I need it I don't care to develop it. If you want to add to it, grab the code at https://github.com/chadoh/no-column-width