haskell-hplayground: broken because haste doesn't compile any more
haskell-packages.nix: fix spelling of snapCors attribute
haskell-webdriver: broken by network 2.6.x update
haskell-Extra: broken by network 2.6.x update
haskell-DAV: broken by network 2.6.x update
haskell-snap-cors: jailbreak to fix build with network 2.6.x