Changes to 获取应用全部存储，包括依赖的存储(V2.1支持多种类型存储)

get/v2/tenants/{tenant_name}/services/{service_alias}/volumes

Nov 7, 20175e3ca7f5dfc5 Revision changes
- info
  endpoint added
Nov 7, 20177b547fba71aa Revision changes
- breaking
  api path removed without deprecation