TODO notes from devin
Marked some of devin's comments with TODO so they turn up in a grep.
fix bank number in lorom Logical()
update todos in readme
account for emu mode for pha/phx/phy/pla/plx/ply
don't mark A as unknown nearly as often

(since most or all opcodes of each type don't modify A's value)
Merge branch 'master' of git://github.com/devinacker/65816disasm into devinacker-master

Conflicts:
	README