Updated the danish translation

Have added translations for step definitions that were missing in the danish translation. Have also changed some of the existing because the order of the words didn't make sense when following the keyword "When" - which the corrected steps are meant to.

I'm aware that this could break peoples test if anyone is using them - but I'm pretty sure that I'm the only one using behat in Denmark at the moment. Have been in touch with the person who submitted the original translation. He was only testing the abilities of behat back then and not using it anymore. Think it would be better to correct the translation now - than later.