Various fixes and improvements.
About to tinker with teh protocol.
Still tinkering with teh protocol.
Rejiggered protocol.
More protocol cleanup.
Further protocol cleanup.
Merge branch 'master' of https://github.com/bvschwartz/urbit
Grudgingly use recvfrom lane.
Refactor some packet stuff.
More dispatch refactoring.
Acknowledgments adjusted.
More acknowledgments.
Delete was broken in both ++in and ++by!  Holy moly!
Add doze to vane interface.
Shell variables in bede.
Adjusted front gate for new ++keep.
Aboot to do some packet scheduling.
Comment out jet assert.
Remove bad timer caching.
Actual proper spacing of attributes.