Tested allocator.
Stashing, basically.
Fix some bugs.
Just a stash.
Adapt tiers 1 and 2 to new jets.
Adapt jet layer 3 to new noun system.
Tier 4.
Convert tier 5 to new noun layer.
Stashing.
All jets now compile cleanly.
Adjust refcounts in u2_cj_*.
Debugging meme.
Nouns and memory appear to work properly...
More memory improvements.
Various fixes and improvements.
Incorporate HAMT into meme.c; delete old BPT.
Various fixes and improvements.
Various fixes and improvements.
Jet dispatcher compiles and links.
Better to commit than stash.