Adding cfacts, vanitygaps patches and bottomstack layouts

patch/cfacts.c

@@ -0,0 +1,17 @@
+void
+setcfact(const Arg *arg) {
+	float f;
+	Client *c;
+
+	c = selmon->sel;
+
+	if (!arg || !c || !selmon->lt[selmon->sellt]->arrange)
+		return;
+	f = arg->f + c->cfact;
+	if (arg->f == 0.0)
+		f = 1.0;
+	else if (f < 0.25 || f > 4.0)
+		return;
+	c->cfact = f;
+	arrange(selmon);
+}