applied Hiltjo's resize/move limitation

"Limit the amount of updates when resizing or moving a window in floating
mode to 60 times per second. This makes resizing and moving alot smoother
and by limiting it it also uses alot less resources on my machine.

LICENSE

@@ -1,6 +1,7 @@
 MIT/X Consortium License
 
 © 2006-2014 Anselm R Garbe <anselm@garbe.us>
+© 2010-2014 Hiltjo Posthuma <hiltjo@codemadness.org>
 © 2007-2011 Peter Hartlich <sgkkr at hartlich dot com>
 © 2010-2011 Connor Lane Smith <cls@lubutu.com>
 © 2006-2009 Jukka Salmi <jukka at salmi dot ch>

dwm.c

@@ -1123,6 +1123,7 @@ movemouse(const Arg *arg) {
 	Client *c;
 	Monitor *m;
 	XEvent ev;
+	Time lasttime = 0;
 
 	if(!(c = selmon->sel))
 		return;
@@ -1145,6 +1146,10 @@ movemouse(const Arg *arg) {
 			handler[ev.type](&ev);
 			break;
 		case MotionNotify:
+			if ((ev.xmotion.time - lasttime) <= (1000 / 60))
+				continue;
+			lasttime = ev.xmotion.time;
+
 			nx = ocx + (ev.xmotion.x - x);
 			ny = ocy + (ev.xmotion.y - y);
 			if(nx >= selmon->wx && nx <= selmon->wx + selmon->ww
@@ -1264,11 +1269,11 @@ resizeclient(Client *c, int x, int y, int w, int h) {
 
 void
 resizemouse(const Arg *arg) {
-	int ocx, ocy;
+	int ocx, ocy, nw, nh;
-	int nw, nh;
 	Client *c;
 	Monitor *m;
 	XEvent ev;
+	Time lasttime = 0;
 
 	if(!(c = selmon->sel))
 		return;
@@ -1290,6 +1295,10 @@ resizemouse(const Arg *arg) {
 			handler[ev.type](&ev);
 			break;
 		case MotionNotify:
+			if ((ev.xmotion.time - lasttime) <= (1000 / 60))
+				continue;
+			lasttime = ev.xmotion.time;
+
 			nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1);
 			nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1);
 			if(c->mon->wx + nw >= selmon->wx && c->mon->wx + nw <= selmon->wx + selmon->ww