diff --git a/node_modules/json-stable-stringify-without-jsonify/index.js b/node_modules/json-stable-stringify-without-jsonify/index.js
new file mode 100644
index 0000000..a6f40c7
--- /dev/null
+++ b/node_modules/json-stable-stringify-without-jsonify/index.js
@@ -0,0 +1,82 @@
+module.exports = function (obj, opts) {
+    if (!opts) opts = {};
+    if (typeof opts === 'function') opts = { cmp: opts };
+    var space = opts.space || '';
+    if (typeof space === 'number') space = Array(space+1).join(' ');
+    var cycles = (typeof opts.cycles === 'boolean') ? opts.cycles : false;
+    var replacer = opts.replacer || function(key, value) { return value; };
+
+    var cmp = opts.cmp && (function (f) {
+        return function (node) {
+            return function (a, b) {
+                var aobj = { key: a, value: node[a] };
+                var bobj = { key: b, value: node[b] };
+                return f(aobj, bobj);
+            };
+        };
+    })(opts.cmp);
+
+    var seen = [];
+    return (function stringify (parent, key, node, level) {
+        var indent = space ? ('\n' + new Array(level + 1).join(space)) : '';
+        var colonSeparator = space ? ': ' : ':';
+
+        if (node && node.toJSON && typeof node.toJSON === 'function') {
+            node = node.toJSON();
+        }
+
+        node = replacer.call(parent, key, node);
+
+        if (node === undefined) {
+            return;
+        }
+        if (typeof node !== 'object' || node === null) {
+            return JSON.stringify(node);
+        }
+        if (isArray(node)) {
+            var out = [];
+            for (var i = 0; i < node.length; i++) {
+                var item = stringify(node, i, node[i], level+1) || JSON.stringify(null);
+                out.push(indent + space + item);
+            }
+            return '[' + out.join(',') + indent + ']';
+        }
+        else {
+            if (seen.indexOf(node) !== -1) {
+                if (cycles) return JSON.stringify('__cycle__');
+                throw new TypeError('Converting circular structure to JSON');
+            }
+            else seen.push(node);
+
+            var keys = objectKeys(node).sort(cmp && cmp(node));
+            var out = [];
+            for (var i = 0; i < keys.length; i++) {
+                var key = keys[i];
+                var value = stringify(node, key, node[key], level+1);
+
+                if(!value) continue;
+
+                var keyValue = JSON.stringify(key)
+                    + colonSeparator
+                    + value;
+                ;
+                out.push(indent + space + keyValue);
+            }
+            seen.splice(seen.indexOf(node), 1);
+            return '{' + out.join(',') + indent + '}';
+        }
+    })({ '': obj }, '', obj, 0);
+};
+
+var isArray = Array.isArray || function (x) {
+    return {}.toString.call(x) === '[object Array]';
+};
+
+var objectKeys = Object.keys || function (obj) {
+    var has = Object.prototype.hasOwnProperty || function () { return true };
+    var keys = [];
+    for (var key in obj) {
+        if (has.call(obj, key)) keys.push(key);
+    }
+    return keys;
+};