Now uses a modified MCPPBS. Add --host=riscv to configure path.
Front-end server now just searches PATH for riscv-pk, so just install the pk
to somewhere in your path.
Moved cross-compiler to /xcc/ rather than /
Added ISA sim in /sim/
Added Proxy Kernel in /pk/ (to be cleaned up)
Added opcode map to /opcodes/ (ditto)
Added documentation to /doc/