freetdm: - updated all signaling modules (except for ftmod_isdn and ftmod_sangoma_ss7) to adapt to new core state processing

- fixed bug in configure.ac to detect ftmod_pritap compilation
         - ignore FTDM_SIGEVENT_RELEASED and FTDM_SIGEVENT_INDICATION_COMPLETED in mod_freetdm
         - Destroy the state completed interrupt on channel destroy
         - Fix analog polarity reversal bug when using 3-way calling or call-swap

libs/freetdm/configure.ac

@@ -160,7 +160,7 @@ AC_ARG_WITH([pritap],
 	[AS_HELP_STRING([--with-pritap], [Install ftmod_pritap])],
 	[case "${withval}" in
 	 no)	enable_pritap="no" ;;
-	 *)	enable_pritab="yes" ;;
+	 *)	enable_pritap="yes" ;;
 	 esac],
 	[enable_pritap="no"]
 )