fix few bugs around ipv6 detection
implement receiving of in-dialog chat message
Do not notify on-the-phone presence automatically when starting the first call.

It is the application that has to handle the presence as it wishes.
rework implementation of SUBSCRIBEs delayed to successful registration.
In case of network errors, SUBSCRIBE could be sent before registration refresh, this should be fixed.
finish to remove automatic on-the-phone notifications
improve linphone_core_stop_ringing() so that it also suppresses call waiting beep.
Add missing tester.c file for Android compilation
remove a test that checks a removed feature.
improve time checking in test suite
add setMtu() getMtu() to java API
re-add new functions in LinphoneCore.java that was reverted by my fuck*** Eclipse when crashing.
set default value of video renderer
update ms2
add comments about resetting ZRTP context in case of RE-INVITE
minimal SIP UPDATE support
add set/get for SDP control
add jni wrapper for: enableSdp200Ack
add function to override common telephony tones by wav files
Merge branch 'master' of git.linphone.org:linphone

Conflicts:
	coreapi/linphonecore.h
	coreapi/private.h
wrap linphone_core_set_tone() to java