Cabal revisions of wumpus-core-0.20.0

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

 name:             wumpus-core version:          0.20.0+x-revision: 1 license:          BSD3 license-file:     LICENSE copyright:        Stephen Tetley <stephen.tetley@gmail.com>   build-depends:      base < 5, containers,                       time >= 1.1.3 && < 1.2,                       wl-pprint, vector-space, -                      monadLib, xml, algebra+                      monadLib, xml, algebra < 0.1                            exposed-modules:     Wumpus.Core,