Merge pull request #1 from hyunsun/ng-model-grizzly

apply /32 subnet support patches
Merge pull request #2 from hyunsun/ng-model-grizzly

UCLOUDNG-274: apply bug 1171997 patch
moved quantum attributes from nova-network cook to ktc-quantum cook
search keystone-api role instead of keystone api to get keystone api endpoint
UCLOUDNG-277 Create recipe to patch quantum bug 1171997
UCLOUDNG-282 : quantum-metadata-agent automation
Merge pull request #5 from chamankang/UCLOUDNG-282

UCLOUDNG-282 : quantum-metadata-agent automation
UCLOUDNG-293 : Nova VIF driver should be linuxbridge
Merge pull request #6 from chamankang/UCLOUDNG-293

UCLOUDNG-293 : Nova VIF driver should be linuxbridge
UCLOUDNG-282 : quantum-metadata-agent automation
Merge pull request #7 from chamankang/UCLOUDNG-282

UCLOUDNG-282 : quantum-metadata-agent automation
changed to get quantum-server version for patching