Cabal revisions of dstring-0.1

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

 Name:                   dstring Version:                0.1+x-revision: 1 Synopsis:               Difference strings. Description:   Difference strings: a data structure for O(1) append on Stability:              experimental  Library-  Build-Depends:        base, dlist+  Build-Depends:        base < 4.8, dlist >= 0.3.2 && < 0.6   Exposed-modules:      Data.DString   Ghc-options:          -O2 -Wall