Moved to Git!

[Nick Smallbone]

Dear list,

The QuickCheck repository has moved to GitHub! To get a copy, do
   git clone git://github.com/nick8325/quickcheck.git
or visit
   https://github.com/nick8325/quickcheck

We won't be using GitHub's pull request stuff, though: please carry on
sending patches to the mailing list.

The 'master' branch will contain the stable version of the code, i.e.,
what will appear in the next QuickCheck release. The 'experimental'
branch is for wilder ideas :)

Nick