title: UITextView issue in iOS 8 : text view not scroll when entering text
body: <p>I am facing issue in iOS 8 in prior version is working perfect.</p>
  
  <p>My text view is around 4 line when I am entering text more then 4 line text view automaticaly scroll up but in this case not scroll in iOS8.</p>
  
  <p>Here is my code.</p>
  
  <pre><code>- (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text{
  
      NSString *updatedString = [textView.text stringByReplacingCharactersInRange:range withString:text];
      textView.text = updatedString;
      return NO;
  
  
  }
  </code></pre>
  
  <p>Thanks in advance.</p>