Add note.
Merge branch 'master' of github.com:bredelings/BAli-Phy
Remove 'parameters' from 'roots'.
Move 'identifiers' out of 'roots'.
Small cleanup.
Simplification.
Make push_temp_head() return int.
Add note.
Pop more allocations immediately.
Pop the rest of allocations immediately.
Fully eliminate the link list of roots.
Remove debugging define from Prelude.C
Update notes for optimization ideas.
Rewrite Box<T> to be an example of a T.
Avoid wasting time decrementing use counts.
Switch shared_ptr to object_ptr< >

This doesn't actually save any time, but it clarifies where the time is
spent.