lib v1.10

• lookup_accounts_for_ou() now caches calls to organizations.DescribeOrganization.

CLI v4.27

• Added --account-name-case and --role-name-case to aws-sso-util configure populate (#48 from @oshaughnessy).
• aws-sso-util check logs version and timestamp information.
• Fixed bug in aws-sso-util configure profile with Python 3.6.