package.json: node >= 0.10.0

package.json

@@ -21,7 +21,7 @@
     "url": "https://github.com/herby/amd-config-builder/issues"
   },
   "engines": {
-    "node": ">=0.8.0"
+    "node": ">=0.10.0"
   },
   "dependencies": {
     "lodash": "~2.4.1",