Sort timeseries on tabular view.

Having timeseries jump around every time you hit Execute is annoying.
Some ordering is required, so sort the timeseries. localCompare is
browser-dependant, but that's sufficient for this use case.

More powerful sorting/grouping options would be nice, this should cover most
use cases as a sane ordering like this is sufficient for eyeballing data.
Hmm, we can't just re-sort tabular data in the JS. This would undo the job of the `sort()` and `sort_desc()` expression language functions.