MOD: We enforce RTTI usage now, so remove options supporting no RTTI in PropertySet
MOD: We enforce RTTI usage now, so remove options supporting no RTTI in PropertySet

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