added whole system from ola4doc

sys/node_modules/gulp-util/index.js

@@ -0,0 +1,18 @@
+module.exports = {
+  File: require('vinyl'),
+  replaceExtension: require('replace-ext'),
+  colors: require('chalk'),
+  date: require('dateformat'),
+  log: require('./lib/log'),
+  template: require('./lib/template'),
+  env: require('./lib/env'),
+  beep: require('beeper'),
+  noop: require('./lib/noop'),
+  isStream: require('./lib/isStream'),
+  isBuffer: require('./lib/isBuffer'),
+  isNull: require('./lib/isNull'),
+  linefeed: '\n',
+  combine: require('./lib/combine'),
+  buffer: require('./lib/buffer'),
+  PluginError: require('./lib/PluginError')
+};