Improve handling of closed connections#148

Merged

johnsca merged 9 commits intomasterfrom

bug/147-connection-closed

Jun 22, 2017

Commits on Jun 19, 2017

Prevent circular reference between Monitor and Connection
johnsca
committed

Commits on Jun 21, 2017

Gracefully handle add_signal_handler failing in a thread in loop.run
johnsca
committed

Commits on Jun 22, 2017