Misc (re #1751): added experimental option to enable/use worker thread for Python. To enable worker thread:
 - uncomment USE_THREADS in pjsip-apps/src/swig/python/Makefile
 - change USE_THREADS to True in pjsip-apps/src/pygui/application.py


git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4798 74dad513-b988-da41-8d7b-12977e46ad98
Re #1751 Removed reference to libmilenage in ipjsua iOS

git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4799 74dad513-b988-da41-8d7b-12977e46ad98
Re #1751: Fix build error when using 'disable-libsamplerate' on configure.



git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4800 74dad513-b988-da41-8d7b-12977e46ad98
Re #1750 fix for detecting definition of CodecID in newer ffmpeg

git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4801 74dad513-b988-da41-8d7b-12977e46ad98
Re #1752: Add option to resolve hostname when trying to get network interface.



git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4802 74dad513-b988-da41-8d7b-12977e46ad98
Misc (re #1751): Fixed unremoved pjsua2_demo.o after 'make clean'.



git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4803 74dad513-b988-da41-8d7b-12977e46ad98
Fix #1753: Fixed crash in pjsua2 when receiving unsolicited MWI.



git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4804 74dad513-b988-da41-8d7b-12977e46ad98
Fix #1754: Fixed crash in video stream when encoder returns zero payload length.



git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4805 74dad513-b988-da41-8d7b-12977e46ad98
Fix #1755: Send ACK for incoming 200/INVITE even after call is disconnected.



git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4806 74dad513-b988-da41-8d7b-12977e46ad98
Fixed #1756: Race condition in SIP transaction termination (thanks to Kevin Harwell for the patch)



git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4807 74dad513-b988-da41-8d7b-12977e46ad98
Re #1750:
 - Replaced "enum CodecID" with "unsigned" (previous fix raised compile error for some older ffmpeg versions).
 - Handled PIX_FMT_GBR24P hassle.



git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4808 74dad513-b988-da41-8d7b-12977e46ad98
Added third_party/portaudio -r 1433.
Merge branch 'upstream' of https://github.com/dennisguse/pjsip into upstream
Merge branch 'master' of https://github.com/dennisguse/pjsip

Conflicts:
	pjmedia/src/pjmedia/ffmpeg_util.c