Add delay to DNP3Port_tests to work around opendnp3 bug Seems there's still a bug in opendnp3 shutdown sequence 	- sometimes it reconnects after stack is disabled 	- no big deal as it disconnects again soon after
Add delay to DNP3Port_tests to work around opendnp3 bug
Seems there's still a bug in opendnp3 shutdown sequence
	- sometimes it reconnects after stack is disabled
	- no big deal as it disconnects again soon after

neilstephens/opendatacon,neilstephens/opendatacon,neilstephens/opendatacon,neilstephens/opendatacon,neilstephens/opendatacon,neilstephens/opendatacon,neilstephens/opendatacon