update package devDependencies

Author: crissdev

package.json

@@ -19,18 +19,18 @@
     "knockout": ">=2.2.0"
   },
   "devDependencies": {
-    "del": "^1.1.1",
+    "del": "^2.0.2",
     "gulp": "^3.8.11",
     "gulp-header": "^1.2.2",
     "gulp-if": "^1.2.5",
     "gulp-jshint": "^1.9.2",
-    "gulp-plumber": "^0.6.6",
+    "gulp-plumber": "^1.0.1",
     "gulp-qunit": "^1.2.1",
     "gulp-rename": "^1.2.0",
     "gulp-replace": "^0.5.3",
     "gulp-sourcemaps": "^1.3.0",
     "gulp-uglify": "^1.1.0",
-    "jshint-stylish": "^1.0.0"
+    "jshint-stylish": "^2.0.1"
   },
   "scripts": {
     "test": "gulp test-ci"