Avoid TunnelManager to register or unregister when SIP is disabled
Add some traces
Fix crash

Crash when outgoing call with tunnel and srtp enabled
fix crash when declining an update
refine conditions for refusing an UPDATE
add new play test
Add one tester to the transport suite
Fix invalid read/write
fix re-invite whiout sdp
renew altname certificate for tester
update ms2 (video enhancements)
Merge (fix in misc.c that I previously fixed in my tree)