Fixed AuthenticatedTestHelper#login_as, made it accept different types of arguments.
Fixed AuthenticatedTestHelper#login_as, made it accept different types of arguments.

mynameisfashanu/openconferenceware,osbridge/openconferenceware,mynameisfashanu/openconferenceware,ondrocks/openconferenceware,igal/openproposals,osbridge/openconferenceware,osbridge/openconferenceware,igal/openproposals,igal/openproposals,ondrocks/openconferenceware,igal/openproposals,ondrocks/openconferenceware,igal/openproposals,igal/openproposals,mynameisfashanu/openconferenceware,ondrocks/openconferenceware,mynameisfashanu/openconferenceware,osbridge/openconferenceware