Updated Dutch translation

Updated til commit e661871aea
Merge pull request #844 from sanderdatema/dutch_translation

Updated Dutch translation
Fix broken YML
Topic Auto-Close: admins and mods can set a topic to automatically close after a number of days
Add 'automatically' to the auto-close notification
You can now 'move' the first post of a topic to another topic as a merge. In that
case, the first post is cloned instead of being deleted from the original topic.
Add a touchend event to the admin menu. Hopefully helps IE11 Touch.
Add title tag to the admin options button in the composer
Don't reload the page when auto close time is changed
Fix rerender of topic close message when you navigate away from a closing topic
Can search by URL or ID
FIX: Oneboix link target is discourse instance

This is the quickest fix to get Techcrunch oneboxing working.
The right fix would be to update the oembed onebox to work properly for the "link" type.
disable observers in tests, enable as needed, tests are 20% faster
ok ... guard needs these dependencies earlier
this warning is getting in the way of my presentation
Add a link to sidekiq in the dashboard message warning about failed email jobs
FIX: Load more user admin details, even when passed from a list
Add Create Topic button to /categories page
Fix: comma
better multi-select help text