Update Dutch translation for 3.7.0 (see #1086)

[jerogee]

With improved consistency. Also covers #1069 and #1070.

[ann0see]

I'm sorry, but I don't see any changes here? Did you commit the correct file?

[ann0see]

Thanks! See my comment.

[ann0see]

Adding the official checklist here too.

• Listed in the Contributors UI

  jamulus/src/util.cpp

  Line 500 in 04bba26

  "<p>Jeroen Geertzen (<a href=\"https://github.com/jerogee\">jerogee</a>)</p>"

• Changes look consistent (see comments above)
• No untranslated strings

[hoffie]

Thanks! Looks good to me. @ann0see's comment should to be checked before merge.

[ann0see]

Great! Thanks for the change.

[hoffie]

Thanks!