[Yhc] darcs update

Hi, We are moving to a new darcs repo on haskell.org, so that non-York people can get ssh keys and access and have a chance to play in our repo. We now have a new repo: darcs.haskell.org/yhc Unfortunately I haven't tagged the repo yet, so --partial doesn't work. I am currently the only person with commit access, we're working on getting access for everyone else. Can no one commit to the old repo for the next day or so, until everyone has access to the new repo. Don't start pulling from there until I've got checkpointing set up, or it will take a while :) Thanks Neil