Script Summary: Adds extra links for Coral Cache
Appends coral cache links to any external links from slashdot.
This is an updated version of "this":http://userscripts.org/scripts/show/1666 script with two bugfixes:
- doesn't touch links to nyud.net:8080 or nyud.net:8090. this was causing huge numbers of links to be appended previously.
- doesn't touch links to localhost/127.0.0.1
