Enable the user to configure the time period used for each data point in the dose-over-time plots.

[David Platten]

The available choices will be fixed by those available in qsstats-magic time-series: 'years', 'months', 'weeks', 'days', 'hours' or 'minutes'. It doesn't look like multiples of these is possible.

[David Platten]

Added option for user to change the time period used for the dose over time plots for both CT and radiographic data. Options are days, weeks, months or years. Fixes issue #190.

→ <<cset a99dfb33be90>>