This solves the --no-collapse problem by letting you force
Absolute mode on an instruction by instruction bases, which is
usually going to be what you want anyway.
Full PEP8 compliance. Also, booleans have been inserted where
they make sense (introduced in 2.3!) and I haven't knowingly
added anything that will break 2.3 compatibility.
At this point the code really doesn't look like it was written
ten years ago. Hooray!