Separate glance and eventlet wsgi logging
Separate glance and eventlet wsgi logging

The log output from both glance.common.wsgi and
eventlet.wsgi have the same prefix:

glance.wsgi.server [-] Started child 3679
glance.wsgi.server [-] (3679) wsgi starting up on http://0.0.0.0:80/

It's better to have them separated, eg:

glance.common.wsgi [-] Started child 3729
eventlet.wsgi.server [-] (3729) wsgi starting up on http://0.0.0.0:80/

(This matches, for example, the Cinder behaviour.)

Change-Id: Ic42a2966e63270a6a9fed4eeb3b7737ca25b8c1d
Closes-bug: #1382585

JioCloud/glance,scripnichenko/glance,sigmavirus24/glance,takeshineshiro/glance,akash1808/glance,wkoathp/glance,saeki-masaki/glance,ozamiatin/glance,paramite/glance,kfwang/Glance-OVA-OVF,klmitch/glance,darren-wang/gl,rajalokan/glance,vuntz/glance,openstack/glance,kfwang/Glance-OVA-OVF,klmitch/glance,scripnichenko/glance,vuntz/glance,wkoathp/glance,openstack/glance,rajalokan/glance,jumpstarter-io/glance,ozamiatin/glance,openstack/glance,akash1808/glance,darren-wang/gl,paramite/glance,JioCloud/glance,stevelle/glance,takeshineshiro/glance,dims/glance,stevelle/glance,sigmavirus24/glance,dims/glance,jumpstarter-io/glance,saeki-masaki/glance