resip/stack: TlsConnection: check for errors after calling SSL_get_shutdown

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/branches/resiprocate-1.9@11203 ddefafc4-47db-0310-ae44-fa13212b10f2
rpm: add definitions for stdint to CXXFLAGS

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/branches/resiprocate-1.9@11204 ddefafc4-47db-0310-ae44-fa13212b10f2
resip/stack: TlsConnection: check for errors after calling SSL_pending

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/branches/resiprocate-1.9@11205 ddefafc4-47db-0310-ae44-fa13212b10f2
resip/stack: TlsConnection: check for errors after calling SSL_shutdown

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/branches/resiprocate-1.9@11206 ddefafc4-47db-0310-ae44-fa13212b10f2