add configure flag to turn on legacy coredb behavior

configure.in

@@ -425,6 +425,13 @@ fi
 
 fi
 
+AC_ARG_ENABLE(deprecated-core-db-events,
+	[AS_HELP_STRING([--enable-deprecated-core-db-events], [Keep deprecated core db events])],,[enable_deprecated_core_db_events="no"])
+
+if test x"$enable_deprecated_core_db_events" = x"yes" ; then
+        AC_DEFINE([SWITCH_DEPRECATED_CORE_DB], [1], [Define to 1 to enable deprecated core db events])
+fi
+
 AC_ARG_ENABLE(timerfd-wrapper,
 [AC_HELP_STRING([--enable-timerfd-wrapper],[timerfd is in the kernel but not in your libc])],[enable_timer_fd_wrapper="$enableval"],[enable_timer_fd_wrapper="no"])
 AM_CONDITIONAL([ENABLE_TIMERFD_WRAPPER],[test "x$enable_timer_fd_wrapper" != "xno"])

src/switch_core_sqldb.c

@@ -1973,14 +1973,18 @@ static void core_event_handler(switch_event_t *event)
 			case CS_NEW:
 			case CS_DESTROY:
 			case CS_REPORTING:
-				//case CS_HANGUP: /* marked for deprication */
+#ifndef SWITCH_DEPRECATED_CORE_DB
+			case CS_HANGUP: /* marked for deprication */
+#endif
 			case CS_INIT:
 				break;
+#ifdef SWITCH_DEPRECATED_CORE_DB
 			case CS_HANGUP: /* marked for deprication */
 				new_sql_a() = switch_mprintf("update channels set state='%s' where uuid='%s'",
 											 switch_event_get_header_nil(event, "channel-state"),
 											 switch_event_get_header_nil(event, "unique-id"));
 				break;
+#endif
 			case CS_EXECUTE:
 				if ((extra_cols = parse_presence_data_cols(event))) {
 					new_sql() = switch_mprintf("update channels set state='%s',%s where uuid='%q'",