add TODO comment
change return/throw/yield signatures
improved protocol
acquire/release fiber are now synchronous
combined fi-co working but needs cleanup
cleanup WIP...
cleanup contd WIP...
cleanup contd WIP...
improved await.cps
Fiber refs limited to pipeline and mods
improved yield protocol
finalised maxConcurrency
cleaned up pipeline
address more TODOs, cleanup
use proper sentinel for await handlers
bugfix for mockfs benchmarking
tweaks, WIP...
add profiler example
perf opts with experimental coro pool (WIP)
exec of suspendable body starts synchronously

tests updated to match. This matches the behaviour of bluebird.