add hPlot (not finished)
update hPlot
Merge remote-tracking branch 'ramnathv/master' into add-hPlot-alternative
add hPlot arguments
Merge remote-tracking branch 'ramnathv/master'

Conflicts:
	R/Highcharts.R
hPlot: size -> radius
add names argument to toJSONArray2
update hPlot and remove data method
Merge remote-tracking branch 'ramnathv/master' into hPlot
add examples
update toJSONArray2

replace apply with lapply to avoid converting numeric values to
character
add hPlot pie chart example
Merge remote-tracking branch 'ramnathv/master' into hPlot
change hPlot argument color -> group
add highcharts support to notebook
Merge pull request #55 from reinholdsson/hPlot

Add hPlot to Highcharts