#2787 Explicit resolution limit for Das2Server in the GUI

[Jeremy Faden]

Chris would like to be able to limit the data resolution the Das2Server client asks for. This is actually a Das2Server URI feature which exists, where if resolution=3600 is in the URI it will always ask for 3600 second resolution† . However this does not show up in the GUI, and it should. In fact you see the resolution hard-coded into the URI briefly before it is cleared.

† We probably want to allow it to request at courser resolution, and this should be a "no finer than" control.

[Chris Piker]

I'd imagine that a "no finer than" control would be a good idea (knowing George H). So to encapsulate the logic:

1. DSDF says data source requires interval -> GUI controls minimum "interval=" GET parameter
2. DSDF doesn't required interval -> GUI controls minimum "resolution=" GET parameter

[Chris Piker]

I'm updating the tracers data source generation script to start adding the "-r" parameter to the das2_bin_avgsec reducer for line-plot data. Everything in Tracers test area that outputs as a lineplot will start providing min/max/avg unless the "Intrinsic Resolution" button is selected.

I'm leaving out std. dev. for now because confidence intervals are what I was originally interested in but didn't know what to call it.

[Jeremy Faden]

I'm committing changes to allow the resolution to be limited. A new "resolutionLimit" switch is added to URIs and the "interval" label is swapped for TCAs vs datasets.