Misc re #1630: added string.h to pjlib-util.h. Thanks Johan lantz for the suggestion

git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4688 74dad513-b988-da41-8d7b-12977e46ad98
Fixed #1717: Destroy media subsystem after all pollings/busy_sleep() are done, but leave deallocating media transport (via pjsua_media_channel_deinit()) before the pollings to allow clean TURN destroy.



git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4694 74dad513-b988-da41-8d7b-12977e46ad98
Fixed #1718: Immediately shift call state to DISCONNECTED after receiving 422 response without Min-SE header.



git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4695 74dad513-b988-da41-8d7b-12977e46ad98
Re #1630 (misc): Fixed documentation of pjsip_generic_int_hdr



git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4700 74dad513-b988-da41-8d7b-12977e46ad98
Close #1720:
 - Added configure flags --with-external-srtp and --disable-resample.
 - Added macro setting PJMEDIA_LIBSRTP_AUTO_INIT_DEINIT to allow application to handle libsrtp init & deinit by itself.



git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@4701 74dad513-b988-da41-8d7b-12977e46ad98