Convert openstack-common.conf to the new format.

Its easier to read.

Change-Id: I26cd4ec8dee19e87e1bda1098644ebec043b57a4

openstack-common.conf

@@ -1,3 +1,32 @@
 [DEFAULT]
-modules=cfg,iniparser,rpc,importutils,excutils,local,jsonutils,gettextutils,timeutils,notifier,context,log,service,eventlet_backdoor,network_utils,threadgroup,loopingcall,utils,exception,setup,wsgi,policy,version,uuidutils,processutils,rootwrap
+
+# The list of modules to copy from oslo-incubator.git
+module=cfg
+module=context
+module=eventlet_backdoor
+module=exception
+module=excutils
+module=gettextutils
+module=importutils
+module=iniparser
+module=jsonutils
+module=local
+module=log
+module=loopingcall
+module=network_utils
+module=notifier
+module=policy
+module=processutils
+module=rootwrap
+module=rpc
+module=service
+module=setup
+module=threadgroup
+module=timeutils
+module=utils
+module=uuidutils
+module=version
+module=wsgi
+
+# The base module to hold the copy of openstack.common
 base=moniker