Changes in 0.18.1:
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* Fixed Makefile.am to byte-compile Python files, bug #596702 (Daniel Macks)
* Updated translations:
  ar    (Khaled Hosny)
  ca    (Gil Forcada)
  de    (Mario Blättermann)
  ml    (Ani)
  ro    (Lucian Grijincu)
  ru    (Leonid Kanter)