+2010-05-22
+ * fixed missing memory allocation in SP engine when saving engine data
+ for non-SP game engine snapshots (which also stores SP engine part)
+
2010-05-21
* fixed problem with scrolling in native EM engine in multi-user mode
(this bug was just introduced with the experimental viewport stuff)
* fixed (implemented) single step mode in native EM and SP engines
* fixed "latest_engine" flag in classic levels (moved to single sets)
* updated SDL library DLLs for Windows to the latest release versions
+ (this fixed some mysterious crashes of the game on Windows systems)
* replaced EM and SP set in classic level set with native level files
* finally added a newly written "CREDITS" file to the game package
* removed sampled music loops from classic music set