added initializeSlotsBeforeClass() to help backport to rhel511 testing
altered VerifyRedHatRepoFileIsPurgedOfBlankLinesByYumPlugin_Test to
tolerate Bug 1017354 (yum -q is not quiet) on older
subscription-manager package
log statement was printing out wrong variable in
VerifyMigrationProductCertsSupportThisSystemsRhelVersion_Test
added blockedByBug-1080072 - subscription-manager-migration-data for
rhel5.11 needs rhel5.11 product certs