Release-tracking repository for nlohmann/json

This repository automatically tracks releases of https://github.com/nlohmann/json. It downloads the released json.hpp and json_fwd.hpp files, stores them in the src directory, and adds a Git tag. Correspondingly, this repository can be used as a lightweight Git submodule, without having to download megabytes of data for a JSON library.

See #732, #620, #556, #482, #96

Update 2017/02/04

Force-pushed new version of the repository. The new update script automatically downloads the newly released json_fwd.hpp header.