Register mouseout operator on div to be same as mouseup, so we don't drag ourselves right out of the box.

git-svn-id: http://svn.openlayers.org/trunk/openlayers@201 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Map.js

@@ -98,6 +98,7 @@ OpenLayers.Map.prototype = {
         this.events.register( "mousedown", this, this.defaultMouseDown );
         this.events.register( "mouseup", this, this.defaultMouseUp );
         this.events.register( "mousemove", this, this.defaultMouseMove );
+        this.events.register( "mouseout", this, this.defaultMouseUp );
 
         // always call map.destroy()
         Event.observe(window, 'unload',