Update oslo-incubator strutils

strutils has moved to oslo.utils

The saharaclient/openstack/common/strutils.py remains as it's needed
by apiclient.

Change-Id: I213cda7dcdaef78bbb8fae8fbafed95a68f8f452
Updating oslo-incubator

Changes -
 * Allow tempest to use new log w/o oslo.i18n
 * Fix i18n import
 * Remove code that moved to oslo.i18n
 * Let oslotest manage the six.move setting for mox

Change-Id: I5168b3cd60ab4c987f12152d3c3f09b8cc562d09
Update oslo-incubator cliutils

Changes -
 * cliutils restore python3 string decode
 * Split cliutils
 * remove caching param from prettytable call
 * Remove code that moved to oslo.i18n
 * Switch oslo-incubator to use oslo.utils and remove old modules

Change-Id: I5ed76b7e45f6db65802dfcad10fdcbc58c0f790f
Update oslo-incubator apiclient.exceptions

Changes -
 * deprecate apiclient package
 * Handle different format of api exception
 * Split cliutils
 * Remove code that moved to oslo.i18n

Change-Id: Iba23b2153b9f7be6ea6efe7ff189080a96c45168
Update oslo-incubator importutils

importutils has graduated to oslo.utils

The openstack/common/importutils.py remains while apiclient still uses
it, and we still use apiclient

Change-Id: I734ba72e755f1417611392c2324d6589d14ec62e
Workflow documentation is now in infra-manual

Replace URLs for workflow documentation to appropriate parts of the
OpenStack Project Infrastructure Manual.

Change-Id: I772fb66bfb25664e88530675dfb95291d407d992
Merge "Update oslo-incubator strutils"
Merge "Updating oslo-incubator"
Merge "Update oslo-incubator cliutils"
Merge "Update oslo-incubator apiclient.exceptions"
Merge "Update oslo-incubator importutils"
Updated from global requirements

Change-Id: Icb4cc9e79d5974c1824fe9b43f56134b704b6b2e