Log Message:
Update to 1.8.6:

Meld 1.8.6 has been released.

  Fixes:

    * Handle spaces in filenames with external editor (Kai Willadsen)
    * Fix storing translated column names in configuration (Kai Willadsen)
    * Backport fix for "Open externally" sensitivity setting (Daniel Macks)
    * Fix support for fake comparisons in null VC (Kai Willadsen)
    * Fix "Same" filter for shallow comparison cases (Kai Willadsen)

  Translations:

    * Benjamin Steinwender(de)
    * Daniel Mustieles (es)
    * Inaki Larranaga Murgoitio (eu)
    * Lasse Liehu (fi)