[list][*]script versioning to account for syntax differences between versions.
[*]printf-style string formatting function for ZScript.
[*]more access to map data from ZScript.
[*]exported obituary code to ZScript to allow more flexibility when handling special cases.
[list][*]added GetActorFloorTexture and GetActorFloorTerrain ACS functions.
[*]added new PRINTNAME_ constants for retrieving next and secret next level in ACS.
[*]fixed handling of sector action things with special trigger semantics.
[*]true color fonts can be defined in FONTDEFS.
[*]added a BOUNCE_NotOnShootables flag to address an old design bug in the bouncing system.