fix race condition by waiting for the protocol
wait on protocol
fix imports
only start consumer once smpp bind has been set up
fix silly test, connectionMade is only called once
test for startup with backlog
unpause on succesful bind, not on connect
test for pausing & unpausing on reconnect
more specific backlog message content
Merge branch 'feature/issue-716-smpp-sends-before-connected' into develop
Merge branch 'develop' of github.com:praekelt/vumi into develop
remove unused time import