version tags

[Duncan Coutts]

Hmm,

http://hackage.haskell.org/cgi-bin/hackage-scripts/package/regex-tdfa-0.92-ghc-68-build-fix
http://hackage.haskell.org/cgi-bin/hackage-scripts/package/regex-tdfa-0.92

   Version [0,92] []
== Version [0,92] ["ghc", "68", "build", "fix"]
 = False


I'm sure this is going to break something, though I'm not sure exactly
what yet. We should figure something out.

Duncan