Add missing tenant_id param behinds os-quota-sets

These two APIs missing tenant_id param.
GET v2/{tenant_id}/os-quota-sets Shows quotas for a tenant.
PUT v2/{tenant_id}/os-quota-sets Updates quotas for a tenant.
Should be like:
GET v2/{tenant_id}/os-quota-sets/{tenant_id} Shows quotas for a tenant.
PUT v2/{tenant_id}/os-quota-sets/{tenant_id} Updates quotas for a tenant.

Change-Id: I07581b69835cde3063b109cae564a591386762c8
Closes-bug: 1274153
Use PUT method for user update

Kestone API V2 uses PUT method for user update, but this document uses
wrong method POST.

Change-Id: Ib6e03adc8372200d8e8b8a26a7beb06bbf68c9be
Closes-Bug: #1273857
Merge "Add missing tenant_id param behinds os-quota-sets"
Merge "Use PUT method for user update"