Merge pull request #93 from parente/add-libxrender1

Install libxrender1 to appease matplotlib et al.

all-spark-notebook/Dockerfile

@@ -49,7 +49,6 @@ ENV SPARK_OPTS --driver-java-options=-Xms1024M --driver-java-options=-Xmx4096M -
 # R pre-requisites
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
-    libxrender1 \
     fonts-dejavu \
     gfortran \
     gcc && apt-get clean

datascience-notebook/Dockerfile

@@ -7,7 +7,6 @@ USER root
 # R pre-requisites
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
-    libxrender1 \
     fonts-dejavu \
     gfortran \
     gcc && apt-get clean

minimal-notebook/Dockerfile

@@ -24,6 +24,7 @@ RUN apt-get update && apt-get install -yq --no-install-recommends \
     texlive-fonts-recommended \
     sudo \
     locales \
+    libxrender1 \
     && apt-get clean
 RUN echo "en_US.UTF-8 UTF-8" > /etc/locale.gen && \
     locale-gen

r-notebook/Dockerfile

@@ -8,7 +8,6 @@ USER root
 # R pre-requisites
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
-    libxrender1 \
     fonts-dejavu \
     gfortran \
     gcc && apt-get clean