updated sys and created publi

publi/node_modules/gulp-util/lib/combine.js

@@ -0,0 +1,11 @@
+var pipeline = require('multipipe');
+
+module.exports = function(){
+  var args = arguments;
+  if (args.length === 1 && Array.isArray(args[0])) {
+    args = args[0];
+  }
+  return function(){
+    return pipeline.apply(pipeline, args);
+  };
+};