fix error type names.  raise more interesting errors such as - data too large or data type not supported or no plot available.
hierarchy plot names horrible hack
disable tabs I don't have good results for yet.
don't list the plot names - just discover them from the environment.  Reduces configuration.
crummy notes on data structures
decorate dataset names with 'd3' marker if they have a graph.
crummy movie plot plot.  I really need small multiples.
added Date x axis.  From R this needs conversion into milliseconds since epoch, which is not necessarily straightforward.
movies uses data format.
help links in UI