refactor so that config.yml and chart.html suffice for offline rendering. script.html still being used for publishing, but to be done away with in the future.
add a generic rChart.html template.
add a get_assets function to utils.R
add jquery to nvd3.css config
modify class to rChart
add jQuery to nvd3/js
fix layouts to comply with refactored renderer
add config.yml and assets for rickshaw
bump version to 0.1.6