Log Message:
Update to 1.6.1:

2012-10-21 meld 1.6.1
=====================

  Fixes:

    * Fix traceback from invalid tree cursor paths (Kai Willadsen) (closes
      rhbz#832969 and rhbz#837133)
    * Fix traceback when popping up right-click menus in empty tree sections
      (Kai Willadsen) (closes rhbz#843879)
    * Fix Bazaar comparisons including exec bit changes (Kai Willadsen) (closes
      bgo#682852)
    * Avoid spurious listings in Bazaar with shelved items (Per Ångström)
    * Fix copying symlinks in directories (Rainer Suhm) (closes rhbz#836606)
    * Support newer Fossil VC (Jan Danielsson) (closes bgo#683969)
    * Fix compatibility with Python 2.5 (Gianni Trovisi)