Fixed checks for ID of virtual interface.

- ID can only be given, if redundancy protocol is given.
- Compare IDs only for identical redundancy protocol.
- Check for identical IDs didn't work reliably,
  if the same ID occured in some other network.
Better error message if copy_raw fails.
Show "Finished" at real end, not before copy_raw
Allow managed and unmanaged VRF on the same device
v3.025

 - Allow mixed managed and unmanaged VRFs on the same device.
Build results of 506021a (on master)