Switched to json config files 

Replaces the lua config parser with a json parser and installs the proper dependencies.

I briefly tested the change in the AlloSphere with the calibration patterns and did not notice any issues.
(Sidebar for AlloTeam: Has "calibrationpattern" been looking grainy for anyone else?)

There are still a couple TODOs:
- [ ] Install jsoncpp in Windows. (Can I ask your help @LancePutnam?)
- [ ] Make additions to config file parsing. (@fishuyo will take the lead.)