First go at Dutch translation.

[roelaaij]

The trickiest to translate was is the word for "switch", using the Dutch translation of "switch as in light switch", which is "knop", doesn't sound right, as that is generally used as a translation for "button" . "Schakelaar" would be another possibility, but that refers to a switch object more than to the concept of a switch. In the end I choose "optie", which is also the translation of "option".

[coveralls]

Coverage increased (+0.02%) to 82.35% when pulling a27543c on roelaaij:dutch_translation into efaf6e0 on tomerfiliba:master.

[henryiii]

Looks great! I'm taking this opportunity to drop 3.3 support as well, since it seems like it's not supported by the optional packages used in Travis tests. That should get the build to finish.

Since argument (--this=that) was translated to a different word than flag (--this), I think "optie" is clear.

[coveralls]

Coverage increased (+0.02%) to 82.35% when pulling b61a287 on roelaaij:dutch_translation into efaf6e0 on tomerfiliba:master.

[henryiii]

Thanks!