v2.0.3.0

Change log

1. New feature:
   1. Search in json tree window
   2. Handle NaN, Inf, -Inf, Infinity, -Infinity properly
2. Bug/regression fixes:
   1. Handle all types of arrays which does not have any key
   2. Corrected typos in setting json
   3. Don't use double qoutes for other than string type