Complet Method Verification of simple tenant usage
Complet Method Verification of simple tenant usage

verified the API doc for os-simple-tenant-usage,
remove some common error code like 500, 503 etc

Part of bp:api-ref-in-rst

Change-Id: I90d6899cdb9dc9983fdbfd5156b369ab2fb88226

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