Fixing some typos

Changing numerical words that were not spelled according to
http://www.riksmalsforbundet.no/Spr%C3%A5ktjenester/Grammatikk-med-nye-grammatikktermer/Spr%C3%A5kets-legoklosser/Tallord.aspx
Merge pull request #1 from dagolap/master

Fixing some typos