thin option for plot.epicontactsvisNetwork in vis_epicontacts() has been
fixedvis_epicontacts() gains an x_axis argument
to specify a column to use for displaying datesvis_epicontacts() and plot() now both use
same default thinningvis_epicontacts() now accepts fontawesome icon codes
for node shapes
graph3D() will now plot an igraph
object direct thanks to updates in threejs API
make_epicontacts now handles contacts provided as
factors
added URL of website and issue system to DESCRIPTION
replaced javascript graphics in README.md with screenshots - these were not rendering on github