Updated openstack/openstack
Project: openstack/python-glanceclient  d613adc434e93c24d7c3bb34849d2aed1710e0d5

Add profiling support to glanceclinet

To be able to create profiling traces for Glance, client should be
able to send special HTTP header that contains trace info.
This patch is as well important to be able to make cross project
traces. (Typical case nova calls glance via python client, if
profiler is initialized in nova, glance client will add extra
header, that will be parsed by special osprofiler middleware in glance
api)
Don't worry no security issue here, trace information is signed by HMAC
key that is setted in api-paste.ini. So only person that knows HMAC key
is able to send proper header.

Change-Id: Ib13084fbe9b33c2f3dee165f7d6c778546cce6ca