Depend on errorcall-eq-instance
Inflate: Add Applicative and Functor instances

These will be needed after GHC 7.8
Cmd.Utils: Compatibility with GHC 7.8 unix and process versions
Debian: Use System.Process instead of deprecated System.Cmd
Fixed error (getModificationTime returns UTCTime, not ClockTime)
Fix for older versions of directory (where getModificationTime still returns ClockTime)
Bump cabal info