Cabal revisions of dstring-0.2

Hackage metadata revisions edit the .cabal file after upload; each diff below is one revision.

 Name:                   dstring Version:                0.2+x-revision: 1 Synopsis:               Difference strings. Description:   Difference strings: a data structure for O(1) append on   Location: http://code.haskell.org/~basvandijk/code/dstring  Library-  Build-Depends:        base, dlist+  Build-Depends:        base < 4.8, dlist >= 0.3.2 && < 0.6   Exposed-modules:      Data.DString   Ghc-options:          -O2 -Wall