The lower limit of a logarithmic color range was computed from the value closest to zero, which is not always available. When this value was zero, log10() returned -inf and the lower limit ended up as zero. Use the closest power of ten below the lowest value instead, and use the value closest to zero only when the lowest value is zero or negative. Guard computeTenExponentCeil() and computeTenExponentFloor() against zero, and make sure the range always spans at least one decade.
* Add missing time conversion for month
* #9606: FIx wrong usage of function when accessing data from summary file
The result values are aggregated into the destination vector in RimSummaryCaseCollection::computeMinMax(), so make sure the vector is recreated per case.
* #9602 : Make sure the plot is updated correctly for "Time since simulation start"
* Move roundToNumSignificantDigits() to RiaNumericalTools
* Make sure the time axis is consistent when individual time range differs
Magne Sjaastad