Corrected sprintf format in Norwegian translation in users/index.html.erb.

The page failed with this error: invalid value for Integer(): "aktiv"
Merge pull request #176 from Midiar/master

Corrected sprintf format in Norwegian translation for users/index.html.erb. Thanks @Midiar
Merge remote-tracking branch 'upstream/master'
Removed pixel width parameter for search plugin; it should be styled
via CSS.