Cleaning up some spring-loaded related dragging code.  Allow cancel spring loaded mode.

Change-Id: Ie1f0468c563bed7abc1aa6416e222cdb0853c03a
diff --git a/src/com/android/launcher2/ItemInfo.java b/src/com/android/launcher2/ItemInfo.java
index 3bb3b07..3a1c29a 100644
--- a/src/com/android/launcher2/ItemInfo.java
+++ b/src/com/android/launcher2/ItemInfo.java
@@ -150,6 +150,8 @@
 
     @Override
     public String toString() {
-        return "Item(id=" + this.id + " type=" + this.itemType + ")";
+        return "Item(id=" + this.id + " type=" + this.itemType + " container=" + this.container
+            + " screen=" + screen + " cellX=" + cellX + " cellY=" + cellY + " spanX=" + spanX
+            + " spanY=" + spanY + " isGesture=" + isGesture + " dropPos=" + dropPos + ")";
     }
 }