introduce queue
async and sourcing works, but deferral needed
close to dogfooding
split components
async and sync suppor
composition
more specs fix; context issue with handlers
simplified model
cleanup context and envelope
some notes
Merge branch 'dogfood' into async
refactored queue
handled event raised twice: good or bad?
entirely done with messages
more fix specs
deferral works
deferrable with sep queue
solved deferral suppression with unit of work
work on deferral until next handler
remove unused components