Update context from Oslo

Following changes were updated:

13eb01c Adding domain to context and log
12bcdb7 Remove vim header
bdabd51 Remove uuidutils imports in oslo modules
44e8222 Revert "Removes generate_uuid from uuidutils"
571a78a Removes generate_uuid from uuidutils
36859e5 Adding instance_uuid to context and log

Change-Id: Ifecf96418a6082fe52f010f566dcd7505a3de629
Closes-bug: #1253497