rstudio-server version pinning

Makefile

-all: 
+all:
 	make sync r-ver rstudio tidyverse verse
 
-r-ver: .PHONY 
+r-ver: .PHONY
 	make -C r-ver/ latest
 rstudio: .PHONY
 	make -C rstudio/ latest
-tidyverse: .PHONY 
+tidyverse: .PHONY
 	make -C tidyverse/ latest
-verse: .PHONY 
+verse: .PHONY
 	make -C verse/ latest
 
 sync:
-	make -C r-ver/ sync 
+	make -C r-ver/ sync
 	make -C rstudio/ sync
 	make -C tidyverse/ sync
 	make -C verse/ sync
@@ -21,7 +21,7 @@ sync:
 
 
 clean::
-	make -C r-ver/ clean 
+	make -C r-ver/ clean
 	make -C rstudio/ clean
 	make -C tidyverse/ clean
 	make -C verse/ clean

VERSIONS.md

@@ -39,7 +39,8 @@ docker build --build-arg RSTUDIO_VERSION=1.1.414 -t rocker/rstudio:3.4.2 .
 | 3.4.2    | 2017-11-30 | 1.1.383         | 2017-10-09   |
 | 3.4.3    | 2017-03-15 | 1.1.442         | 2018-03-12   |
 | 3.4.4    | 2018-04-23 | 1.1.447         | 2018-04-18   |
-| 3.5.0    | latest     | latest          | latest       |
+| 3.5.0    | 2018-07-02 | 1.1.447         | 2018-04-18   |
+| 3.5.1    | latest     | latest          | latest       |
 
 **The old rule where `rocker/rstudio` was build, by default, using the latest
 RStudio Server is cancelled**, since RStudio ships with `rmarkdown` package. 

rstudio/3.5.0/Dockerfile

@@ -2,7 +2,7 @@ FROM rocker/r-ver:3.5.0
 
 ARG RSTUDIO_VERSION
 ## Comment the next line to use the latest RStudio Server version by default
-#ENV RSTUDIO_VERSION=${RSTUDIO_VERSION:-1.1.447}
+ENV RSTUDIO_VERSION=${RSTUDIO_VERSION:-1.1.447}
 ENV PATH=/usr/lib/rstudio-server/bin:$PATH
 
 ## Download and install RStudio server & dependencies

rstudio/3.5.1/Dockerfile

@@ -2,7 +2,7 @@ FROM rocker/r-ver:3.5.1
 
 ARG RSTUDIO_VERSION
 ## Comment the next line to use the latest RStudio Server version by default
-#ENV RSTUDIO_VERSION=${RSTUDIO_VERSION:-1.1.447}
+ENV RSTUDIO_VERSION=${RSTUDIO_VERSION:-1.1.456}
 ENV PATH=/usr/lib/rstudio-server/bin:$PATH
 
 ## Download and install RStudio server & dependencies