Fixed issue MortimerGoro#51: Starting swiping on one cell while anoth…

…er one is open makes the swipe a no-op. Fixed issue MortimerGoro#53: Pressing a UITableViewCell when a cell is currently swiped open

MGSwipeTableCell/MGSwipeTableCell.m

@@ -28,7 +28,7 @@ -(UIView *) hitTest:(CGPoint)point withEvent:(UIEvent *)event
         return nil;
     }
     [_currentCell hideSwipeAnimated:YES];
-    return self;
+    return nil; //return nil to allow swipping a new cell while the current one is hidding
 }
 
 @end