fix nfs-related options for glance and cinder
set tenant_network_type on compute and networker
Merge pull request #237 from sseago/nfs-options-fix

fix nfs-related options for glance and cinder
Merge pull request #240 from sseago/tenant_network_type-fix

set tenant_network_type on compute and networker
reduce the upper limit for ml2_tunnel_id_ranges and _vni_ranges
Merge pull request #238 from sseago/ml2_tunnel_id_ranges-fix

reduce the upper limit for ml2_tunnel_id_ranges and _vni_ranges