Stream 'drain' event now passes the stream as a parameter.
PSR-4
Update child repos to PSR-4 for git subs-plit
[tests] Add bootstrap back to not pollute prod-ish setups
Added stream parameter to emitted events on Buffer and ThroughStream.
Merge pull request #246 from jmalloc/stream-drain-event

[Stream] Pass the stream as final parameter on 'drain'.
Merge remote-tracking branch 'origin/psr-4'

* origin/psr-4:
  [tests] Add bootstrap back to not pollute prod-ish setups
  Update child repos to PSR-4 for git subs-plit
  PSR-4