anchor.diff:  
   # Try replacing the standard ubuntu archive with a faster mirror
   RUN sed -i.bak 's/archive.ubuntu.com/mirrors.rit.edu/' /etc/apt/sources.list
  +
  +# Install Pandoc
  +RUN cabal update && cabal install pandoc
  +RUN cabal update && cabal install pandoc-citeproc
  +
  +# Link Pandoc Binaries
  +RUN ln -s /root/.cabal/bin/pandoc /usr/local/bin/pandoc
  +RUN ln -s /root/.cabal/bin/pandoc-citeproc /usr/local/bin/pandoc-citeproc
   
   # Get the system ready to build R from source
   RUN apt-get update && apt-get build-dep --assume-yes \
  
positive.code: FROM danielak/pandoc:latest
  
  # Global Variables
  # Making one change to RBRANCH toggles this from pre-release (R-devel) to base (current R)
  
negative.code:     make && \
      make install
  
  # Install R packages
  COPY r-packages.R /tmp/
  RUN R --vanilla -f /tmp/r-packages.R
  
  