added blockedByBug-979492 - certlib.py:359 - [Errno 2] No such file or
directory: '/etc/pki/entitlement/8708055077508634943-key.pem'
added some coverage for Bug 877331 - missing --org --environment
arguments for migration script

Created test for the --org option to rhn-migrate-classic-to-rhsm, but
not the --environment option.
added TODO Bug 967863 - subscription-manager-migration package should
depend on subscription-manager-migration-data
added blockedByBug 980209 - rhn-migrate-classic-to-rhsm --no-auto
--force is throwing "Unknown feature: 'ENT_DIR'"
commented out blockedByBug-922882