Don't need to include ToDo.html on web or in package
Add to ToDo: clean up dates
A bit more in the vignette
In results, summary -> abstract; times w/o T and Z

 - times as "2014-09-13 11:24:00" not "2014-09-13T11:24:00Z" (with T and
   Z may be more standard but is less understandable to the novice)