FlowForwarding/of_driver — pull request #15 by efcasado (2014-06-17 08:51:38+00:00)
Title: Terminate gracefully when version negotation fails

This PR prevents `SwitchHandler:terminate/2` from being called when the switch and the controller fail at negotiating which OpenFlow version to use.

#13 should not be closed yet since there are still more cases that may lead to unwanted calls to `SwitchHandler:terminate/2`.