* Add support to ARM64 configuration for win32 build
* Add changes notes to webrtc and webrtc_aec3 third party sources
* Remove reference to libwebrtc_aec3 from libpjproject. Add reference it manually if libwebrtc_aec3 is needed.
* Fix build error on Release configuration.
- Fixed re-INVITE scenario: always generate SRTP attr in SDP re-offer/answer as both offerer/answerer (as long as SRTP is not disabled of course), currently it does not generate SRTP attr if active session does not use SRTP.
- Fixed bug in retrieving video stream info from SDP that caused DTLS transport (UDP/TLS/RTP/SAVP) getting rejected.
- Added pjsua app param '--srtp-keying=0/1' to choose SRTP keying to be used in the outgoing offer (0=SDES (default), 1=DTLS-SRTP).
- Few minors, e.g: adding transport_srtp_dtls/sdes.c to pjmedia MSVC2015 project.
git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@5746 74dad513-b988-da41-8d7b-12977e46ad98
Riza Sulistyo
Riza Sulistyo
Nanang Izzuddin
Sauw Ming