Update package.json

Author: ArthurClemens

package.json

@@ -3,9 +3,6 @@
   "version": "1.0.5",
   "description": "Simple undo manager to provide undo and redo actions in JavaScript applications.",
   "main": "lib/undomanager.js",
-  "directories": {
-    "test": "test"
-  },
   "scripts": {
     "lint": "eslint --ext .js --fix .",
     "test": "jasmine-browser-runner runSpecs",