title: Adding a UITapGestureRecognizer to a view then removing seems to short circuit button events
body: <p>In the code below I am popping up a ImageView as the result of a users touchUpInside on a simple info button.  There are other buttons on the view.</p>
  
  <p>To dismiss the info I added a UITapGestureRecognizer to my controllers view, and hide the view when the tap is detected.  </p>
  
  <p>If I don't remove the tapGestureRecognizer, the action is called every time some.</p>
  
  <p>Even when I do remove the gesture action, no bottons receive touchUpInside events once this gesture recognizer is added.  Why?  </p>
  
  <p>Code from my MainViewController</p>
  
  <pre><code>- (void) dismissInfo: (UITapGestureRecognizer *)gesture {
      [kInfoView setHidden: YES];
      [gesture removeTarget: self action: NULL];
  }
  
  - (IBAction) displayInfo {      
      CGRect startFrame = CGRectMake(725, 25, 0, 0), origFrame;
      CGFloat yCenter = [kInfoView frame].size.height/2 + 200;
      CGPoint startCenter = CGPointMake(724, 25), displayCenter = CGPointMake(384, yCenter);
      UITapGestureRecognizer *g = [[UITapGestureRecognizer alloc] initWithTarget: self
                                                                          action: @selector(dismissInfo:)];
  
      [self.view addGestureRecognizer: g];
      origFrame = [kInfoView frame];
      [kInfoView setCenter: startCenter];
      [kInfoView setHidden: NO];
      [kInfoView setFrame: startFrame];
  
      [UIView beginAnimations: @"info" context: nil];
      [UIView setAnimationDuration: .5];
      [UIView setAnimationDelegate: self];
  
      [kInfoView setFrame: origFrame];
      [kInfoView setCenter: displayCenter];
  
      [UIView commitAnimations];
  }
  </code></pre>