[mt972] Rename compress.c to compress_zlib.c Build projects that include bzip2 and zlib has conflicts like StormLib due to same name files, at least under VS. So rename it to bypass the trouble and use only one copy of Zlib for all projects.
[mt973] Rename variable to fit changes in StormLib
[mt974] Some compile fixes for vmap_assembler under win. VS project files NOT provided, everyone who wants to compile with VS have to keep its own project files. mangosR2 support MinGW compiler for tools.