First steps to getting the runtime system compiled on Windows.  At this stage, just hacks to get it going, and not well thought through.  Will need review.
Fixing up more warnings and errors under Visual Studio 2010.
Merge remote-tracking branch 'origin/windows-boot' into self-boot
Making assembler conditional on OS_NT instead of __WINNT__ which doesn't seem to be defined any more, and prevented untagging of function pointers to the C stub.
Asserting that tagging and detagging a pointer to a runtime C function is safe.  We've observed it losing bits and crashing very quickly
Forcing mlw.dll to load at a low address so that it's possible to store its entry points in MLWorks integers with two-bit tags.  This allows us to load and run images from MLWorks 2.0.
Renaming harp to mir in src.
Missing semicolong.  Mysterious
Adding .gitignore files to ignore build products after a compiler reboot.
Updating readme to indicate rebooted status of MLWorks.