NaNs are not standardized when serializing wave to json

[t-b]

The attached zip has two ibn waves. One with standard NaNs and one with NaNs from CurveFit.

These give different results when serialized:

•print zeromq_test_serializeWave(normalNaN)
  {
    "data": {
        "raw": [
            "nan",
            "nan"
        ]
    },
...
•print zeromq_test_serializeWave(strangeNaN)
  {
    "data": {
        "raw": [
            "-nan(ind)",
            "-nan(ind)"
        ]
    },
...

The "strange" NaN can be created with

•make/D xData = {1, 1}
•make/D yData = {10, 10}
•CurveFit line yData/X=xData 
  y= W_coef[0]+W_coef[1]*x
  W_coef={NaN,NaN}
  V_chisq= NaN;V_npnts= 2;V_numNaNs= 0;V_numINFs= 0;V_startRow= 0;
  V_endRow= 1;V_q= 1;V_Rab= NaN;V_Pr= NaN;V_r2= NaN;
  W_sigma={NaN,NaN}
  Coefficient values ± one standard deviation
  	a	= NaN ± NaN
  	b	= NaN ± NaN
•print zeromq_test_serializeWave(w_coef)

I think we should always standardize the output to nan. Check also the same for inf.

someNaNs.zip