Reorganize a few lines from common.h to build under windows VS2015

[Cayleth]

in common.h, when compiling on my platform from the visual studio solution, the #ifndef DONT_INCLUDE_SDL block, which #includes the SDL headers needs to go BEFORE the #include <curses.h>, so that underscore underscore WIN32 underscore underscore gets defined, otherwise curses.h doesn't define a large number of functions, resulting in thousands of compile errors.

[Schmel924]

Well, i just uncomment define DONT_INCLUDE_SDL in common.h and live with it. I also inserted #define __USE_MINGW_ANSI_STDIO 0 in includes.h.
I think this address this issue, but may be not right way of doing this.