Fixed Relogin in horizon doesn't work

Added missing LOGOUT_URL to local_settings.py template

Change-Id: I1378dab60247246fed24873b0d04430429d3d079
Partial-Bug: #1284241
Tune sqlalchemy backend settings for OS on scale

- Tune SQLAlchemy backend settings for Openstack (QueuePool related)
- Evaluate sqlalchemy backend scaling parameters at osnailyfactor
- Fix deprecated in I [DEFAULT] usage for database config
- For Neutron use neutron_config[:database] as well
    * Ensure max_pool_size in [10, 30] limits (10 is config defaults)
    * Ensure max_overflow in [20, 60] limits (20 is config defaults)

Closes-bug: #1274784
Partial blueprint: optimize-db-performance-at-scale

Change-Id: I0e843022f04f53150da52858280034aad6aee987
Merge "Tune sqlalchemy backend settings for OS on scale"
Fix log_file for Sahara-api

Closes-bug: 1301905
CI retest

Change-Id: I49b193a59c4b907e15e2a3071ba0d799586aba5d
Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com>
remove restart of Galera, mysql and pacemaker/corosync services

Closes-bug: #1303839
Change-Id: I4d7f77d6c2c87cbde7804ddaf30f04b3fc369de3
Fix wrong path to Sahara conf file

Change-Id: I5549a506178d7702660ba2a02884c38227192c17
Merge "Fix log_file for Sahara-api"
Merge "Fixed Relogin in horizon doesn't work"
Merge "remove restart of Galera, mysql and pacemaker/corosync services"