Fix ListHeaderSegment name generation to use new approach to names.
Fix ListHeaderSegment name generation to use new approach to names.

arkana-fts/cegui,RealityFactory/CEGUI,arkana-fts/cegui,arkana-fts/cegui,RealityFactory/CEGUI,arkana-fts/cegui,cbeck88/cegui-mirror,RealityFactory/CEGUI,arkana-fts/cegui,RealityFactory/CEGUI,cbeck88/cegui-mirror,cbeck88/cegui-mirror,cbeck88/cegui-mirror,cbeck88/cegui-mirror,RealityFactory/CEGUI