Adds pin so that atmega can trigger discovery

git-svn-id: https://heledd.googlecode.com/svn/trunk@81 76c5b99b-c41f-f9d4-998d-396bb8324e16
Gerbers and PNG for r81

git-svn-id: https://heledd.googlecode.com/svn/trunk@82 76c5b99b-c41f-f9d4-998d-396bb8324e16