patch applied (cabal): "Add a deprecated knownExtensions for better backwards compatability"

Tue May 17 15:43:27 PDT 2011 Duncan Coutts * Add a deprecated knownExtensions for better backwards compatability As suggested by Hamish Mackenzie M ./Language/Haskell/Extension.hs -1 +7 View patch online: http://darcs.haskell.org/cgi-bin/darcsweb.cgi?r=cabal;a=darcs_commitdiff;h=2...