#1874 RMarkdown: make sure that the preview menu appears when user right-clicks on an R code block
#1874 RMarkdown: make sure that the preview menu appears when user right-clicks on an R code block

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