Log Message:
Updated meld to 3.18.0.

2017-09-10 meld 3.18.0
======================

  Fixes:

   * Fix VC status not updating in some situations non-flattened mode (Kai
     Willadsen)
   * Command line errors when invoking a secondary instance will no longer
     cause the second command to hang until the primary exits (Kai Willadsen)

   * Bugs fixed: 786629

  Translations:

   * Emin Tufan Çetin (tr)