Trebuchet: Updated Norwegian translation

Patch set 2: All new, with the new cm_*.xml format.

Patch set 3: Nettfjøl --> Nettbrett

Patch set 4: Fade --> Nedtone

Change-Id: I03aa4ee53570aaf978aedbb72c040e5908b4aac1
Merge "Trebuchet: Updated Norwegian translation" into cm-10.1