Adding an "mp" demo to the demos directory.
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Removing the AVR32 mode.
Removing the db64360 machine mode.
Removing the Olivetti M700 mode (broken and unsupported anyway).
Bug fix.
Removing the old i960, HPPA-RISC, x86, and IA64 modes, and the PC bios emulation.
Changing the testmips and baremips machines to a MIPS64 r2 CPU by default, instead of r1.