anchor.diff:  	r-cran-htmltools \
   	r-cran-plyr
   
  -RUN wget --no-verbose https://s3.amazonaws.com/rstudio-shiny-server-os-build/ubuntu-12.04/x86_64/VERSION -O "version.txt" && \
  +RUN sudo wget --no-verbose https://s3.amazonaws.com/rstudio-shiny-server-os-build/ubuntu-12.04/x86_64/VERSION -O "version.txt" && \
   	VERSION=$(cat version.txt) && \
   	wget --no-verbose "https://s3.amazonaws.com/rstudio-shiny-server-os-build/ubuntu-12.04/x86_64/shiny-server-$VERSION-amd64.deb" -O ss-latest.deb && \
   	gdebi -n ss-latest.deb && \
  
positive.code: 
  MAINTAINER Jeffrey O Hanson "jeffrey.hanson@uqconnect.edu.au"
  
  RUN apt-get update && apt-get install -y --allow-downgrades \
  	sudo \
  	gdebi-core \
  	pandoc \
  
negative.code: 	libtiff5=4.0.7-1 \
  	software-properties-common
  
  RUN sudo add-apt-repository -y ppa:marutter/rrutter && add-apt-repository -y ppa:marutter/c2d4u && apt-get update && apt-get -f install \
  	r-cran-rcpp \ 
  	r-cran-httpuv \ 
  	r-cran-RcppTOML \ 
  