Add production dependencies

node_modules/buffer-equal/index.js

@@ -0,0 +1,14 @@
+var Buffer = require('buffer').Buffer; // for use with browserify
+
+module.exports = function (a, b) {
+    if (!Buffer.isBuffer(a)) return undefined;
+    if (!Buffer.isBuffer(b)) return undefined;
+    if (typeof a.equals === 'function') return a.equals(b);
+    if (a.length !== b.length) return false;
+    
+    for (var i = 0; i < a.length; i++) {
+        if (a[i] !== b[i]) return false;
+    }
+    
+    return true;
+};