Specify storage IP for iscsi connector

The virt drivers supply a connector hash to cinder volumes when
attaching. This used to basically default to CONF.my_ip. This patch
allows the host to have a separate config option in the case the block
traffic is on a separate network.

DocImpact: Adds my_block_storage_ip config option for block traffic going
over a separate network.
Closes-Bug: #1347025

Change-Id: I2bab7226376acd7da78e038a230bf65613547ba6
Fix v2.1 API os-simple-tenant-usage policy

Current etc/policy.json contains typos about os-simple-tenant-usage of
v2.1 API and the authorization doesn't work at all.
This patch fixes the typos.

Partially implements blueprint v2-on-v3-api

Change-Id: I2d1c3290fe336219fcc5523d26b1f8c11e35566f
Fix URL mapping of server metadata PUT request

This patch fix the URL mapping of server metadata PUT request to
'update_all' method by adding the project_id.

Partially implements blueprint v2-on-v3-api

Change-Id: I4650d50ffc804166e13a115c5dd00bd4cc3a5209
Fix URL mapping of image metadata PUT request

This patch fix the URL mapping of image metadata PUT request to
'update_all' method by adding the project_id.

Partially implements blueprint v2-on-v3-api

Change-Id: I0d6c7475797499652ac74be503438e76905eed16
Merge "Fix URL mapping of image metadata PUT request"
Merge "Specify storage IP for iscsi connector"
Merge "Fix URL mapping of server metadata PUT request"
Merge "Fix v2.1 API os-simple-tenant-usage policy"