Add log output of x-openstack-request-id from nova

[OpenStack Infra]

https://review.openstack.org/99864

Dear documentation bug triager. This bug was created here because we did not know how to map the project name "openstack/heat" to a launchpad project name. This indicates that the notify_impact config needs tweaks. You can ask the OpenStack infra team (#openstack-infra on freenode) for help if you need to.

commit c9381c40fa95de6a75c01a4a9cd6fe06abf011b1
Author: Takashi NATSUME <email address hidden>
Date: Fri Jun 13 15:38:08 2014 +0900

    Add log output of x-openstack-request-id from nova

    This patch enables heat to output
    'x-openstack-request-id'/'x-compute-request-id'
    of nova's responses to the log.

    DocImpact: There is a new novaclient configuration
    option 'http_log_debug' in heat.common.config

    Change-Id: Id085af411c6d4ceddce1a75022c4baec9a8210ce
    Closes-bug: #1329612