Small stack corruption bug fixed.

A call to GetScrollRange was using the wrong data types.
Visual C++ 2013 build files added

Too lazy to mess around with MinGW and DevCpp.
Disabling Win32 process ghosting - MSVC++

Hack for Vista+ Windows ghosting feature marking us as non-responsive in
long fight sequences and the intro because UI messages are being
blocked. Not willing to re-write the game to deal with this... MinGW
doesn't extern this call out in most versions, so MSVC++ only for now.
Fixed window sizes on Windows 8

Removed pointless CreateWindow style flag that doesn't affect the
appearance of any windows but wrecks the window size calculations in
Windows 8 and above, possibly also Vista/7, when built with MSVC++.