Sync with oslo

This brings some bugfixes for Python 3 support.

Sync with 468afcb335a98dcfdc1520a73937982107bc2758

Change-Id: Ida73ae17b945e084a52b7024a91707f7729adfa1
BGP Dynamic Routing

In progres...

Change-Id: I7b6f8ad36290d6edbd0563531dfd7c7a3c37b3e9