v0.4.2 

Minor bug fix for `d3ForceNetwork`.

v0.4.1

Improve `d3ForceNetwork` documentation.

v0.4 

Added `d3Sankey` to create Sankey diagrams. Thanks to Scott Chamberlain for the suggestion. 

v0.3.3

`toJSONarray` no longer quotes integers. Thanks to Mark Gene.

v0.3.2

Change examples for `d3ClusterDendro` so that they run on Windows.

v0.3.1 

Collapse and expand clustered dendrograms.

Mouse over zooming with clustered dendrograms.

v0.3

Added Reingold–Tilford Tree graph with `d3Tree`.

Added Cluster Denograms with `d3ClusterDendro`.

v0.2.1

Added ability to zoom into and out of graphs with `zoom` option for `d3ForceNetwork`.

`d3ForceNetwork` example now uses tabular data. 

v0.2

Added `d3ForceNetwork` for creating force directed network graphs where link distance and group changes the graphs attributes.

`d3SimpleNetwork` and `d3Network` are now the same and have improved aesthetic customisability. `d3Network` is depricated. This is in advance of creating functions for force directed and other types of networks.

`JSONtoDF` command added for reading a JSON data file into R. It converts a specified array in the JSON data  into a data frame.

Improvements to the internal workings of the commands. Now uses mustache templates to create the graphs.

Documentation and minor bug fixes.

v0.1.2

Internal improvements using whisker templating.
