JSON Validator Library Changed

[pettazz]

Current version of the JSON Validator library in JACKED/lib/php-json-schema/Json/Validator.php has changes to __construct to switch from taking a path and loading a json file as a schema to just taking a string that is the schema itself. This is altered from the actual repo until either hasbridge/php-json-schema#15 is resolved or this is replaced with an actual fork.