Changelog for wumpus-core-0.13.0

0.12.0 to 0.13.0: * More Haddock documenting. * @lowerLeftUpperRight@ removed from "Wumpus.Core.BoundingBox". * Added range checking and Ord obligation t to the @bbox@ \'smart\' constructor. * Numeric instances for "Wumpus.Core.Colour" improved. * MatrixMult type class simplified * Dash Pattern made a list of on-off pairs rather than just a list * The modules - Wumpus.Core.PictureInternal, Wumpus.Core.PostScript, Wumpus.Core.SVG & Wumpus.Core.Utils - are no longer exposed. * Various operators in "Wumpus.Core.PictureLanguage" changed. * Wumpus.Core.TextEncoding split into an internal and a public module (internal - Wumpus.Core.TextEncodingInternal, public - Wumpus.Core.TextEncoder).