Merge pull request #3 from reducejs/update

update depsify

Author: zoubin

package.json

@@ -31,7 +31,7 @@
   "homepage": "https://github.com/reducejs/reduce-css#readme",
   "dependencies": {
     "common-bundle": "^0.5.0",
-    "depsify": "^4.0.0",
+    "depsify": "^5.0.0",
     "globby": "^4.1.0",
     "postcss": "^5.0.5",
     "postcss-custom-url": "^4.0.0",