Updating NetBSD/sgimips guest OS instructions to version 8.0.
Updating TODO to current state.
Network address of _client_ machines is usually 10.0.0.1.
Next release will more likely be 0.6.1 than 0.6.0.3.
Minor documentation improvements.
ARCS environment fixes (better values for diskless booting).
Some cleanup and refactoring of the O2 rendering engine and other things.
Minor SGI O2 fixes and comments.
Minor fix for NetBSD crmfb_fill_rect: x is shifted 16 bits, not 12 bits.
Only allow SGI O2 MTE memory fills to pages that are in a TLB.
