Matthias A Lee

Often JSON output could be useful, add an option to produce JSON output

- Since Github's RST code-block syntax is broken (and has been for a long while), I've made the change to migrate the Readme to markdown.

Ref: https://github.com/unbit/uwsgi-docs/blob/master/LogFormat.rst#uwsgi-default-logging ``` log-format = [pid: %(pid)|app: -|req: -/-] %(addr) (%(user)) {%(vars) vars in %(pktsize) bytes} [%(ctime)] %(method) %(uri) => generated %(rsize) bytes in %(msecs) msecs (%(proto) %(status)) %(headers) headers...