some more tweaks to GeneralTests for RHEL511
fixed getRegisterWithName_TestDataAsListOfLists for max name length
change by candlepin commit a0db7c35f8d7ee71daeabaf39788b3f47206e0e0
set expectedMsgRHN from yum-rhn-plugin based on package version
added a call to waitForJobDetailStateUsingRESTfulAPI() to
RegisterWithActivationKeyContainingExpiredServiceLevel_Test()
added SkipExceptions when BrandingTests are not run on RHEL >= 7