* Change session imports to keystoneauth1
* Change keystoneclient.exception imports to keystoneauth1
* Change exceptions raised from internal API from keystoneclient to openstack.common
Change-Id: I046d89f561d6fe04baae53726f9749d2e7fe2056
Subclass keystoneclient.session.Session to add the timing hooks to
record the elapsed time returned by requests.Response objects, including
the redirection history. Redirects are included individually and not
rolled into the total time for the original request.
This works for all clients that use OSC's session.
Closes-Bug: #1402577
Change-Id: I9360c90c151579b89a37edb8c11c17feb15b3cb9