Update R-Host submodule (fix #1493)
Update R-Host submodule (fix #1493)

karthiknadig/RTVS,MikhailArkhipov/RTVS,MikhailArkhipov/RTVS,karthiknadig/RTVS,karthiknadig/RTVS,AlexanderSher/RTVS,AlexanderSher/RTVS,karthiknadig/RTVS,AlexanderSher/RTVS,karthiknadig/RTVS,MikhailArkhipov/RTVS,MikhailArkhipov/RTVS,AlexanderSher/RTVS,MikhailArkhipov/RTVS,karthiknadig/RTVS,AlexanderSher/RTVS,MikhailArkhipov/RTVS,AlexanderSher/RTVS,AlexanderSher/RTVS,karthiknadig/RTVS,MikhailArkhipov/RTVS