1.0.5 added patch of Zhang Fan for better rotation support using the middle
      mouse button

1.0.4 added OpenGL configuration options to allow using this application on
      a wider range of graphic cards
      added local cache support

1.0.3 fixed bug that crashed the application when entering an empty URL or
      when a download failed

1.0.2 removed glut library, it was needed only for testing and many people
      do not have glut on their system

1.0.1 first release
