Updated Erlang/OTP Repository at GitHub

I ended up deleting and recreating the erlang-otp repository at github today, in case anyone's having problems accessing it. My original import script had a bug that prevented files from being deleted correctly between versions, which meant the files in the repository didn't exactly match the files in the source tarballs. It should be fixed now, but you were using the old repo you'll probably need to do a clean git clone to get things working again.