SMP causes crash

[atarasenko]

Call to selector [OTRKit initiateSMPForUsername: accountName: protocol: question: secret:] causes a crash: 'NSInternalInconsistencyException', reason: 'Invalid parameter not satisfying: otrKit'

Test case is attached.
SMPTest.swift.txt

Reason: it looks like the third parameter passed to function otrl_message_initiate_smp_q must be not NULL, but [[OTROpData alloc] initWithOTRKit:self tag:nil].