Updated openstack/openstack
Project: openstack/nova  9e9f09ac74f95b6d4b4369b37f565b8f585de88b

Add "x-compute-request-id" to a response header

The commit I5e370fd3de5ee2f8a8d13553015d88910ff5ea87 changed
"x-compute-request-id" to "x-openstack-request-id" on v2.1 API.
But this change is backwards incompatible against v2.0 API.

This patch makes all v2.1 APIs return "x-compute-request-id" in
the header.

Partially implements blueprint v2-on-v3-api

Change-Id: Ibe46e4004a7124ddc9a622fa7f26b9ec10a9a702