Merge pull request #415 from mtraynham/ref_409

Ref #409 - Fix DOM traversal for handle parent node.

src/angular-gridster.js

@@ -1376,15 +1376,17 @@
 									match = true;
 									break;
 								}
+								var target = e.target;
 								for (var p = 0; p < 20; ++p) {
-									var parent = e.target.parentNode;
+									var parent = target.parentNode;
 									if (parent === $el[0]) {
 										break;
 									}
 									if (parent === handle) {
 										match = true;
 										break outerloop;
 									}
+									target = parent;
 								}
 							}
 						if (!match) {
@@ -1425,7 +1427,7 @@
 
 					var maxLeft = gridster.curWidth - 1;
 					var maxTop = gridster.curRowHeight * gridster.maxRows - 1;
-					
+
 					// Get the current mouse position.
 					mouseX = e.pageX;
 					mouseY = e.pageY;