increment copyright year in remaining places

Change-Id: If67d388eb45cb8bf503cfaf88ca2de861183c0b4
Reviewed-by: Christian Kandeler <christian.kandeler@digia.com>
Add support for soft dependencies.

Depends items get a "required" property, module presence can be
checked via "present" property.

Change-Id: Id188a442b3b32c5b2e50e568e59cee074774f125
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>