try to fix null c= address issue
remove needless assertion
configurable per-call TOS value
fix inappropriate locking sequenece
add --TOS to ng-client
Merge branch 'rfuchs/configurable-tos'
fix possible deadlock
better ICE priority calc for non-RFC clients
sample CLI usage for ng-client
properly handle unknown transport protocols
properly support the udptl protocol
Release new version 3.3.0.0+0~mr3.5.0.0
segfault fix for DTLS protocol errors
duplicate x509 in mem for delayed verification
allow for protocol renegotiation
adding some debug messages
fix incorrect port allocations
change default a=crypto: tag from zero to one

Closes #9
better support protocol switching within a call

"initialized" now means that we've talked to the peer and that we
know what they're advertising/supporting
correct data type for key lifetime

Closes #10