Makefile: README.txt and a new COMPILING.txt are now added in win32 and src packages. Updated NSIS script to 99.0 version. Cleaned up the list of error codes and error messages. Removed a debug print. git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@724 416bcca6-2ee7-4201-b75f-2eb2f807beb1