Log Message:
Update to 1.7.5:

2013-9-1 meld 1.7.5
===================

  Features:

    * Open the version control console view when the exit code of a VC
      operation indicates that there was an error (Kai Willadsen)
    * Improve our handling of bad gconf setups, and add a file-system key
      to force a no-gconf fallback for persistent issues (Daniel Richard G)
    * Add a preference for whether to highlight the current line of a file
      comparison (Kai Willadsen)
    * Keyboard shortcut for the commit dialog (Kai Willadsen)

  Fixes:

    * Fix traversing symlink loops in version control comparisons (Kai
      Willadsen)
    * Minor fixes and cleanups (Boruch Baum, Sandro Bonazzola, Kai Willadsen)

  Translations:

    * Antonio Fernandes C. Neto (pt_BR)
    * Daniel Mustieles (es)
    * Fran Diéguez (gl)
    * Marek Černocký (cs)
    * Rafael Ferreira (pt_BR)
    * Piotr Drąg (pl)