Re #1758: Initial implementation of OpenH264 wrapper. Supports:
 - library detection via autoconf
 - CBP
 - packetization modes: 0, 1
 - key frame request and indication
 - obey remote's fmtp

Also added video codec test in samples (similar to the one in pjmedia test though).
And there are some fixes here and there too (e.g. in vid_codec_util.c).


git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4815 74dad513-b988-da41-8d7b-12977e46ad98
Re #1749: Update configure-android to support intel build.



git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4828 74dad513-b988-da41-8d7b-12977e46ad98
Fixed #1763: Add pj_ssl_cipher_id() API



git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4829 74dad513-b988-da41-8d7b-12977e46ad98
Fixed #1764: Use latest early media SDP received on forked early media on 18x response



git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4830 74dad513-b988-da41-8d7b-12977e46ad98
Re #1764: Add reference to ticket number



git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4831 74dad513-b988-da41-8d7b-12977e46ad98
Fixed #1765: Add PFS support



git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4832 74dad513-b988-da41-8d7b-12977e46ad98
Misc (re #1751): Fix build error (Ubuntu 14.04) when building Pjsip with OpenCore-AMR.Thanks to Alexander Traud for the patch.


git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4833 74dad513-b988-da41-8d7b-12977e46ad98
Re #1762: Add capability enumerations and native preview capability



git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4834 74dad513-b988-da41-8d7b-12977e46ad98
Re #1757: Avoid calling OpenGL ES functions when in the background (which may cause app to be killed by iOS)



git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4835 74dad513-b988-da41-8d7b-12977e46ad98
Re #1762: Add I420/IYUV output format to capture devices.



git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4836 74dad513-b988-da41-8d7b-12977e46ad98
Re #1762: Fix native preview not shown issue by starting capture session from main thread.



git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4837 74dad513-b988-da41-8d7b-12977e46ad98
Re #1762: Support more capture sizes (was only 352x288) and automatically find the closest supported size from the requested size.



git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4838 74dad513-b988-da41-8d7b-12977e46ad98
Fixed #1766: Assertion due to stray retransmit timer in UAC transaction completed state

git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4839 74dad513-b988-da41-8d7b-12977e46ad98
Re #1768: Fixed problems with Java garbage collection on call and buddy object

git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4840 74dad513-b988-da41-8d7b-12977e46ad98
Re #1768: fixed wrong JNI compilation flags used by pjsua2 Android sample app

git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4841 74dad513-b988-da41-8d7b-12977e46ad98
Re #1768: added APP_PLATFORM to avoid this warning "WARNING: APP_PLATFORM android-18 is larger than android:minSdkVersion 11" which would make native debugging fail

git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4842 74dad513-b988-da41-8d7b-12977e46ad98
Re #1768: avoid crash if outgoing call fails during media initialization, because on_call_state() is called with NULL event, which is unexpected by pjsua2 (and possibly other unsuspecting apps)

git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4843 74dad513-b988-da41-8d7b-12977e46ad98
Re #1768: fixed potential GC problem when rejecting incoming call

git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4844 74dad513-b988-da41-8d7b-12977e46ad98
Fixed #1767: Tone generation API in pjsua2 and SWIG wrappers

git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4845 74dad513-b988-da41-8d7b-12977e46ad98
Re #1758: changing library name from libwels to libopenh264 in recent OpenH264 update

git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4846 74dad513-b988-da41-8d7b-12977e46ad98