patch applied (cabal): Update user guide on reporting bugs and stability of cabal interfaces

[Duncan Coutts]

Thu Jan 24 12:12:50 PST 2008  Duncan Coutts <duncan at haskell.org>
  * Update user guide on reporting bugs and stability of cabal interfaces
  Fixes ticket #11. Though the section could do with a bit more detail.
  It corresponds to what's on the wiki:
  http://hackage.haskell.org/trac/hackage/wiki/StableInterfaces

    M ./doc/Cabal.xml -40 +127