much higher than default of 19; wrap JSON with Chef::JSON (obj.to_json
becomes Chef::JSON.to_json(obj); JSON.parse becomes Chef::JSON.from_json;
JSON.pretty_generate becomes Chef::JSON.to_json_pretty); monkey-patch
Merb::Request to handle this; override Merb::Controller.display to use 
this; many other modifications to to_json/from_json calls to use 
Chef::JSON