LuaJSON
  JSON Parser/Constructor for Lua

Author:  Thomas Harning Jr. <harningt@gmail.com>

Requirements
  Lua 5.1
  LPeg (Tested with 0.7, 0.8 ... 0.6 should work)
  For regressionTest:
    lfs (Tested with 1.4.1)
  For lunit-tests:
    lunit >= 0.4

License
  All-but tests: MIT-style, See LICENSE for details
  tests/*:       Public Domain / MIT - whichever is least restrictive

Module/Function overview:
  json.encode (callable module referencing json.encode.encode)
  --encode ( value : ANY-valid )

    Takes in a JSON-encodable value and returns the JSON-encoded text
    Valid input types:
      table
      array-like table (spec below)
      string
      number
      boolean
      'null' - represented by json.util.null
    Table keys (string,number,boolean) are encoded as strings, others are erroneus
    Table values are any valid input-type
    Array-like tables are converted into JSON arrays...
      Position 1 maps to JSON Array position 0
  --isEncodable ( value : ANY )
    Returns a boolean stating whether is is encodeable or not
    NOTE: Tables/arrays are not deeply inspected

  json.decode (callable module referencing json.decode.decode)
  --decode  (data : string, strict : optional boolean)
    Takes in a string of JSON data and converts it into a Lua object
    If 'strict' is set, then the strict JSON rule-set is used

  json.util
  --printValue (tab : ANY, name : string)
      recursively prints out all object values - if duplicates found, reference printed
  --null
      Reference value to represent 'null' in a well-defined way to
      allow for null values to be inserted into an array/table

Attribution:
  parsing test suite from JSON_checker project of http://www.json.org/
  No listed license for these files in their package.