- add obsoletes

- update to version 0.36.2
- Fix error handling in network trunks operations
- Handle HTTP errors in add/remove router interface calls
- Consistent normalization of Machine objects in the cloud layer
- Fix error handling on add/remove router iface calls
- Include "fields" to "SecurityGroup" query parameters
- Use has_service in functional test's require_service
- Update TOX/UPPER_CONSTRAINTS_FILE for stable/train
- Fix microversion negotiation in some bare metal node call
- Keep connection backrefs with weakref.proxy
- Update .gitreview for stable/train
- Fix server for later microversion
- baremetal node: 'error' is a failed state

- switch to python 3.x only builds