Post arbitrary JSON with sim.py
Post arbitrary JSON with sim.py

Enhances the sim with new args to allow me to use it as a command line tool to
post an arbitrary json string to the devserver repeatedly. New arguments:
- -j/--json: json string to send to the server. Checked to ensure it parses.
- -w/--wait: wait time, in ms, between requests.
- -n/--number: number of times to send the request

jculpon/tappy-flask,jculpon/tappy-flask