pandoc

gistfile1.txt

sudo apt-get install haskell-platform
cabal update
cabal install pandoc

make sure path 
cabal path is ${HOME}/.cabal/bin

sudo apt-get install graphviz libgraphviz-dev pkg-config python-dev

git clone https://github.com/jgm/pandocfilters.git
cd pandocfilters
sudo python setup.py install
cd ..
wget https://pypi.python.org/packages/source/p/pygraphviz/pygraphviz-1.2.tar.gz
tar xvf pygraphviz-1.2.tar.gz
cd pygraphviz-1.2
sudo python setup.py install