Put a link to us.o in the User Scripts addons header.
Put a link to us.o in the User Scripts addons header.

Fixes #1213

Ventero/greasemonkey,Martii/greasemonkey,Ventero/greasemonkey,HasClass0/greasemonkey,Martii/greasemonkey,HasClass0/greasemonkey,the8472/greasemonkey,the8472/greasemonkey