- Fixed stretching for 256 and 240 pixels tall skies in software.

- apply the ZMusic mutex a bit more finely grained.

It should only guard the critical parts, like calling Stop() but can let Update and IsPlaying method work unhindered otherwise.

- text update.

- this is version 4.2.1

- 4.3pre

- fixed uninitialized alpha channel in palette for savegame images.

- version 4.1.3

- oops, copied the wrong file

- this is version 4.1.1

- 4.2pre