Removed flag "check_opt_group_and_type"
Removed flag "check_opt_group_and_type"

Adding a group name for options have significant code impact and is
not accepted at this stage. Leaving a TODO to fix it in the next cycle.
Also fixed some formatting issues.

Blueprint centralize-config-options-newton

Change-Id: I5c77e9260fe7714bb2d1f765cfb422cced555308

rahulunair/nova,vmturbo/nova,sebrandon1/nova,klmitch/nova,vmturbo/nova,mahak/nova,mahak/nova,vmturbo/nova,hanlind/nova,phenoxim/nova,hanlind/nova,openstack/nova,Juniper/nova,rajalokan/nova,gooddata/openstack-nova,vmturbo/nova,mikalstill/nova,jianghuaw/nova,klmitch/nova,jianghuaw/nova,jianghuaw/nova,openstack/nova,Juniper/nova,rajalokan/nova,gooddata/openstack-nova,alaski/nova,rahulunair/nova,rahulunair/nova,rajalokan/nova,phenoxim/nova,rajalokan/nova,cloudbase/nova,mahak/nova,mikalstill/nova,Juniper/nova,hanlind/nova,openstack/nova,Juniper/nova,gooddata/openstack-nova,cloudbase/nova,klmitch/nova,alaski/nova,sebrandon1/nova,gooddata/openstack-nova,jianghuaw/nova,klmitch/nova,sebrandon1/nova,cloudbase/nova,mikalstill/nova