Merge pull request #101 from mrdomino/master

Fix a considerable memory leak
Fix remaining non-libuv memory leaks

The only leaks remaining are in libuv's fsevents code. They could
be our fault, but it's unlikely.
Optimistically removing bogus comment
Check in some imperial keyprints.
Merge branch 'master' of github.com:urbit/urbit
Poll in u2_lo_loop

This fixes daemon mode.

Strictly speaking, the _lo_poll call is only necessary when we're
in daemon mode, but having our network code randomly work as a side
effect of polling for terminal input seems like a poor life choice,
so we do it unconditionally.
Realistically reintroduce accurate comment

This reverts commit c6e01a7c6ecdcbb2a0848f59b7db6641f0902773.
Fix output in daemon mode