add node modules to repo

node_modules/compare-version/index.js

@@ -0,0 +1,33 @@
+'use strict';
+
+/**
+ * Compare semver version numbers
+ *
+ * @param {String} a
+ * @param {String} b
+ * @api public
+ */
+
+module.exports = function(a, b) {
+    var i;
+    var len;
+
+    if (typeof a + typeof b !== 'stringstring') {
+        return false;
+    }
+
+    a = a.split('.');
+    b = b.split('.');
+    i = 0;
+    len = Math.max(a.length, b.length);
+
+    for (; i < len; i++) {
+        if ((a[i] && !b[i] && parseInt(a[i]) > 0) || (parseInt(a[i]) > parseInt(b[i]))) {
+            return 1;
+        } else if ((b[i] && !a[i] && parseInt(b[i]) > 0) || (parseInt(a[i]) < parseInt(b[i]))) {
+            return -1;
+        }
+    }
+
+    return 0;
+};