Don't set signing_dir by default.

Allow the auth_token middleware to setup its own signing_dir
if required.

Fixes LP Bug #1185098.

Change-Id: Id8766efb34d37ca382b865167ec2465d0a1ce8dc
Replace FLAGS with cfg.CONF in scheduler

Replace all the FLAGS with cfg.CONF in cinder/scheduler
Large commit "https://review.openstack.org/31172" was split into several parts
Use the common pattern: CONF = cfg.CONF

Change-Id: If293d36a9e1552f7af497edf947e82458488bf9c
Fixes: bug #1182037
Implement DB migration for volume transfer BP

This patch implements the backend for volume transfers as specified in the
Volume transfer blueprint.

Change-Id: Id18e57942c3908e2539f3b0845263d0fbdd198f5
implement bp: volume-transfer
Merge "Don't set signing_dir by default."
Merge "Replace FLAGS with cfg.CONF in scheduler"