Change log wxAsteroids

2015-09-23 Version 1.1

• Set focus to frame, to let Linux builds respond to keyboard
• Limited ship movement, to keep it in sight, when moving to the right
• Maintainer set to wxHaskell developer mailing list
• Source-repository address added to cabal file
• Updated links in README.md and wxAsteroids.cabal
• Improved formatting in README.md

2009-03-07 Version 1.0

Converted from the document "wxHaskell - A Portable and Concise GUI Library for Haskell", updated and cabalized.