text: Title: MaltParser is fixed to 1.7.2
  Body: From #2802 (@tomaarsen)
  
  The tests for MaltParser are fixed to version 1.7.2. Perhaps this means that users who have another version for personal use won't have passing tests? If so, that is a problem. Perhaps the best solution is to not even have to specify a version in the constructor. I'm not even sure it gets used - as I believe the MaltParser executable is actually loaded through the `MALT_PARSER` environment variable.