Log Message:
Updated meld to 3.16.1.

2016-06-19 meld 3.16.1
======================

  Fixes:

   * Fix regression in support for file comparisons from pipes (Kai Willadsen)
   * Add open build service directories to the version control filter
     (Dominique Leuenberger)
   * Add darcs to list of loaded plugins (pbgc)
   * Fix the dark style (Kai Willadsen)
   * Windows build fixes (Kai Willadsen)