Even if we're blitting between two different surfaces their pixels might still overlap, because of SDL_CreateRGBSurfaceFrom(), so always use SDL_BlitCopy() and check for overlap in that function.

When handling overlapping surfaces, don't assume that memcpy() iterates forward, instead use memmove() correctly, and provide a fallback implementation of SDL_memmove() that handles the different cases.

Fixed a bug with SDL_memset() not completely filling lengths that aren't a multiple of 4.
Optimized SDL_memcpy() a bit using the same technique as SDL_memset().

Changed SDL_SendKeyboardText and SDL_SendEditingText to use SDL_utf8strlcpy.

Updated copyright to LGPL version 2.1 and year 2010

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More of the Direct3D renderer is implemented, I'm not sure why it's not showing texture copies yet...

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Fixed performance problem with testsprite2 on the D3D driver.

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Cleaned up error message code, UTF-8 is used instead of UCS2
Added detection for MPEG Layer 3 audio for more informative errors.

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Make sure every source file includes SDL_config.h, so the proper system
headers are chosen.

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Officially deprecated SDL_byteorder.h, SDL_getenv.h and SDL_types.h
Moved endian-related SDL_rwops code into SDL_rwops.c

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I'm still wrestling with autoheader, but this should work for now...
Fixed lots of build problems with C library support disabled

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FIXME:
Change #include <stdlib.h> to #include "SDL_stdlib.h"
Change #include <string.h> to #include "SDL_string.h"
Make sure nothing else broke because of this...

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using Visual C++ 2005

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