External links nofollow, favicon, fixer-upper

Wordpress plugin to filter external links, adding rel=nofollow and favicons as configured in admin screen.

It's useful to support

• rel=nofollow on certain links, such as affiliate links or sites to which you don't want to donate pagerank
• Indicator icons so website visitors are warned of external links

This plugin is meant to have comprehensive support for adding useful information to external links.