split ia32_asm code up into memcpy, color
premake: add (windows-only so far) support for NASM include paths -
required when using %include. see rationale in vs.c
refs #124
This was SVN commit r4039.
Used new library include paths.
Renamed ia32.asm to ia32_asm.asm, so we don't need Premake modifications
to avoid object-file conflicts with ia32.cpp.
This was SVN commit r3784.