Neato

Many improvements, including:

• much improved setup utility
• bootctl boot parameters for choosing 40/80 columns and c64mode
• added assembler.128
• added command . to kmon for sourcing text files
• bootloader128 more beautiful and hopefully faster
• command line args from c128 mode passed through autostart64
• added cpm+.d81 CP/M install disk
• added basic runners for kmon and pip to run the appropriate version
• cpm+.prg patched to boot from ram disk (M:)