Added engine version.

More explicit bin declaration.

Author: neogeek

package.json

@@ -2,8 +2,13 @@
   "name": "doxdox",
   "description": "JSDoc to Bootstrap and Markdown documentation generator.",
   "version": "1.1.1",
-  "bin": "./bin/doxdox",
+  "bin": {
+    "doxdox": "./bin/doxdox"
+  },
   "preferGlobal": true,
+  "engines": {
+    "node": ">=4.0"
+  },
   "license": "MIT",
   "dependencies": {
     "chalk": "1.1.3",