test radosgw with command line interface
test radosgw with command line interface

do only keystone-based tests, do not expect glance has swift backend

added a test of S3 API

merge S3 testing into swift API testing

verify file content after uploading & downloading

SUSE-Cloud/automation,aspiers/automation,gosipyan/automation,gosipyan/automation,vmoravec/automation,vmoravec/automation,aspiers/automation,SUSE-Cloud/automation,gosipyan/automation,SUSE-Cloud/automation,vmoravec/automation,SUSE-Cloud/automation,gosipyan/automation,aspiers/automation,vmoravec/automation,aspiers/automation