add a new example data file, one with tai64n timestamps.
rename example data file so default one has timestamps.
makefile: unpack any number of example files. when generating the list of files, put the example files first.
import sprintf.js version 0.6
fix hh:mm:ss formatting in time axis; use sprintf.
prefer sprintf to string concatenation in several places, now that we have it.
don't ajax for the initial list of log files. bake it in with a little html templating. ahh templating with sed, so lo-fi.