[C2hs] patch applied (c2hs): Use filepath package

[Duncan Coutts]

Sun May 13 10:46:51 PDT 2007  Duncan Coutts <duncan.coutts at worc.ox.ac.uk>
  * Use filepath package
  And drop the home-grown FNameOps module.

    R ./base/general/FNameOps.hs
    M ./c2hs.cabal -1 +1
    M ./c2hs/c/C.hs -3 +3
    M ./c2hs/chs/CHS.hs -8 +9
    M ./c2hs/toplevel/Main.hs -16 +20