update npm dependency

package.json

@@ -4,23 +4,23 @@
     "node": ">=4"
   },
   "devDependencies": {
-    "browser-sync": "^2.2.1",
-    "del": "^1.1.1",
-    "gulp": "^3.9.0",
+    "browser-sync": "^2.14.0",
+    "del": "^2.2.1",
+    "gulp": "^3.9.1",
     "gulp-angular-templatecache": "^2.0.0",
-    "gulp-autoprefixer": "^3.0.1",
-    "gulp-cssnano": "^2.0.0",
-    "gulp-eslint": "^2.0.0",
-    "gulp-htmlmin": "^1.3.0",
-    "gulp-if": "^2.0.0",
+    "gulp-autoprefixer": "^3.1.0",
+    "gulp-cssnano": "^2.1.2",
+    "gulp-eslint": "^2.1.0",
+    "gulp-htmlmin": "^2.0.0",
+    "gulp-if": "^2.0.1",
     "gulp-jsonminify": "^1.0.0",
-    "gulp-load-plugins": "^0.10.0",
-    "gulp-plumber": "^1.0.1",
+    "gulp-load-plugins": "^1.2.4",
+    "gulp-plumber": "^1.1.0",
     "gulp-replace": "^0.5.4",
-    "gulp-size": "^1.2.1",
+    "gulp-size": "^2.1.0",
     "gulp-sourcemaps": "^1.6.0",
-    "gulp-uglify": "^1.1.0",
-    "gulp-useref": "^3.0.0"
+    "gulp-uglify": "^1.5.4",
+    "gulp-useref": "^3.1.0"
   },
   "name": "aria-ng",
   "description": "AriaNg, A Better Frontend for aria2",