Merge pull request gulpjs#547 from louisremi/master

Fix incremental-rebuilding example

docs/recipes/incremental-builds-with-concatenate.md

@@ -30,7 +30,7 @@ gulp.task('watch', function () {
   var watcher = gulp.watch(scriptsGlob, ['scripts']); // watch the same files in our scripts task
   watcher.on('change', function (event) {
     if (event.type === 'deleted') { // if a file is deleted, forget about it
-      delete cache.caches['scripts'][event.path]; // gulp-cached remove api
+      delete cached.caches.scripts[event.path]; // gulp-cached remove api
       remember.forget('scripts', event.path); // gulp-remember remove api
     }
   });