fixup CMakeLists.txt
- removed file globbing for sources. when adding a file just append to
  SRC_LIST or PLATFORM_SRC_LIST
- removed TACO definition ;)
- made spacing consitent in CMake calls
- changed WIN32 to WINDOWS to avoid confusing with 32bit windows target.
  if anything it should be WIN64
      * fixed up Scream.h to check for WINDOWS