fix ADAMATLAS-412 (summarize(0) function) and ATDSUPPORT-314 (fix json "-nan")
=== pbeast ===
print NaN and Inf floating point values in double quotes (Igor Soloviev) when summarize() is used, the use of downsampling to be enforced (Igor Soloviev)
=== pbeast ===
print NaN and Inf floating point values in double quotes (Igor Soloviev) when summarize() is used, the use of downsampling to be enforced (Igor Soloviev)