Reset RTCP static pointer to source description to NULL after delete
to prevent access after delete.


git-svn-id: http://scm.sipfoundry.org/rep/sipX/main@12263 a612230a-c5fa-0310-af8b-88eea846685b
Enable libgsm WAVE packing on MSVC8 project like all the others.


git-svn-id: http://scm.sipfoundry.org/rep/sipX/main@12264 a612230a-c5fa-0310-af8b-88eea846685b