Add production dependencies

node_modules/gulp-uglify/composer.js

@@ -0,0 +1,19 @@
+'use strict';
+var through = require('through2');
+var minify = require('./lib/minify');
+
+module.exports = function(uglify, logger) {
+  return function(opts) {
+    var minifier = minify(uglify, logger)(opts);
+    return through.obj(function(file, encoding, callback) {
+      var newFile = null;
+      var err = null;
+      try {
+        newFile = minifier(file);
+      } catch (e) {
+        err = e;
+      }
+      callback(err, newFile);
+    });
+  };
+};