patch 7.4.2310

Problem:    Accessing freed memory when a timer does not repeat.
Solution:   Free after removing it. (Dominique Pelle)

src/ex_cmds2.c

@@ -1222,8 +1222,8 @@ check_due_timer(void)
 		}
 		else
 		{
-		    free_timer(timer);
 		    remove_timer(timer);
+		    free_timer(timer);
 		}
 		/* the callback may do anything, start all over */
 		break;

src/version.c

@@ -763,6 +763,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2310,
 /**/
     2309,
 /**/