title: Add "padding" to a UITextView
body: <p>as the title says i am trying to add padding-like behavior to a UITextView. The textview is generated when the view is pushed inside my navigation controller and the following code occurs:</p>
  
  <pre><code> self.textView.layer.cornerRadius = 7;
   //pretty stuff is pretty
  
   NSString *description = appDelegate.productInDisplay.description;
   [self.textView setText:description];
   //pretty stuff has content now
  
  
   CGRect frame = textView.frame;
   frame.size.height = textView.contentSize.height;
   textView.frame = frame;
   //set the UITextView to the size of it's containing text.
  
   self.textView.editable = NO;
  
    self.theScrollView.contentSize = CGSizeMake(320, 250 + textView.frame.size.height);
    //set the parent scrollView's height to fit some other elements with fixed size (250)
    //and the pre-mentioned UITextView
  </code></pre>
  
  <p>so, it all works and it's ok, but i want to add some padding on all 4 sides of the UITextView and i've been unable to do this with 3 hours of googling for something that seems rather easy. Any suggestions?</p>