added comment to %u in config.default.h, added Button{4.5} support on mode label

config.default.h

@@ -7,7 +7,7 @@ const char *tags[] = { "1", "2", "3", "4", "5", "6", "7", "8", "9", NULL };
 
 #define DEFMODE			dotile		/* dofloat */
 #define FLOATSYMBOL		"><>"
-#define TILESYMBOL		"[%u]="
+#define TILESYMBOL		"[%u]="		/* %u is replaced with nmaster */
 
 #define FONT			"-*-fixed-medium-r-normal-*-13-*-*-*-*-*-*-*"
 #define NORMBGCOLOR		"#333366"

event.c

@@ -131,8 +131,20 @@ buttonpress(XEvent *e) {
 				return;
 			}
 		}
-		if((ev->x < x + bmw) && (ev->button == Button1))
+		if(ev->x < x + bmw)
+			switch(ev->button) {
+			case Button1:
 				togglemode(NULL);
+				break;
+			case Button4:
+				a.i = 1;
+				incnmaster(&a);
+				break;
+			case Button5:
+				a.i = -1;
+				incnmaster(&a);
+				break;
+			}
 	}
 	else if((c = getclient(ev->window))) {
 		focus(c);