Add Choropleth

Signed-off-by: Gordon Smith <gordon.smith@lexisnexis.com>
Create gh-pages branch and add test visualizations.

Signed-off-by: Gordon Smith <gordon.smith@lexisnexis.com>
Graph Refactor

Signed-off-by: Gordon Smith <gordon.smith@lexisnexis.com>
gh-pages Add Choropleth

Signed-off-by: Gordon Smith <gordon.smith@lexisnexis.com>