oopsie
Allow amending with space-prefixed message, !@#$.
Allow non-materialized HEAD.
"cached-merge" command.
Make base load explicit in code gen.
Begin slide rewrite, still missing forced bases and merge elimination.
Handle pre-generated targets.
Track picks and bases contained in each node.
Merge simplification.
TODO
Merge branch '20130718-slide-rewrite'
Docs
Rethink/redo extra argument handling.
-n
Fuck that.
oops
Could be no base...
todo
Merge commit '49af98b9cc79'