patch applied (cabal): Move the license check from a sanity check to a QA check

Sun Jan 20 16:17:22 PST 2008 Duncan Coutts <duncan@haskell.org> * Move the license check from a sanity check to a QA check Also extend the check. It's now a QA error to use a license that is empty or AllRightsReserved. It's a warning to not specify a license file. It's an error for the license file to be given but not exist. Note that QA errors are not fatal for generating tarballs. But they will become fatal errors for uploading to the public hackage server. It will still be possible to use AllRightsReserved or another license on a private hackagedb. M ./Distribution/PackageDescription.hs -4 +1 M ./Distribution/PackageDescription/QA.hs -5 +13