Merge pull request #74 from parente/add-rpy2

Add rpy2

datascience-notebook/Dockerfile

@@ -63,15 +63,16 @@ RUN conda create -p $CONDA_DIR/envs/python2 python=2.7 \
 # R packages including IRKernel which gets installed globally.
 RUN conda config --add channels r
 RUN conda install --yes \
+    'rpy2=2.7*' \
     'r-base=3.2*' \
     'r-irkernel=0.4*' \
     'r-plyr=1.8*' \
-    'r-devtools=1.8*' \
+    'r-devtools=1.9*' \
     'r-dplyr=0.4*' \
     'r-ggplot2=1.0*' \
-    'r-tidyr=0.2*' \
+    'r-tidyr=0.3*' \
     'r-shiny=0.12*' \
-    'r-rmarkdown=0.7*' \
+    'r-rmarkdown=0.8*' \
     'r-forecast=5.8*' \
     'r-stringr=0.6*' \
     'r-rsqlite=1.0*' \