Log Message:
Update to 1.3.3:

2010-09-09 meld-1.3.3
=====================

    * Highlight currently focused change (Kai Willadsen)

    * Add ability to check if version control repos are valid (Peter Tyser)

    * Support multiple-file undo/redo operations after save (Kai Willadsen)

    * Performance improvements, bug fixes and sundry contributions
      (Piotr Piastucki, Alexander Smishlajev, Robert Wahler, Kai Willadsen)

    * Translation updates:
      de (Mario Blättermann), es (Jorge González), fr (Bruno Brouard),
      ja (Takeshi AIHANA), sl (Matej Urbančič), zh_CN (Tao Wang)