Simple and fast C++ library for streamed generation of JSON files.

Features
    1) Takes care of boring details:
       - correctly separating values with commas
       - escaping strings
       - open and close tags
    2) Validation: ensures that generated JSON has correct format
       Attempt to generate incorrect file will cause an exception.
    3) It is simplier than generating data by hand.

Has no dependencies and fully contained in 2 files: 
    json_writer.hpp, json_writer.cpp

Sample usage is in the sample.cpp

Tests are written with Gtest.