(Trivial) Fix parallel composition formatting.
Must also consider whether the output action is Core.InPort, otherwise the bucket will never be considered live.
Merge pull request #17 from frenetic-lang/fix-format

(Trivial) Fix parallel composition formatting.
Merge pull request #18 from frenetic-lang/fix-auto_watch_port

Must also consider whether the output action is Core.InPort, otherwise t...
Merge remote-tracking branch 'upstream/master'