[8] Review request for 8014924 JToolTip#setTipText() sometimes (very often) not repaints component.

[Alexander Scherbatiy]

Hello,
Could you review the fix:
  bug: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=8014924
  webrev: http://cr.openjdk.java.net/~alexsch/8014924/webrev.00

The fix adds missed revalidate() and repaint() methods to the 
JToolTip.setTipText() method.

  Thanks,
Alexandr.