(dist) remove 'lib' from directories

package.json

@@ -10,6 +10,6 @@
   "lib"           : "lib",
   "main"          : "./lib/node-static",
   "version"       : "0.5.0",
-  "directories"   : { "lib": "./lib/node-static", "test": "./test" },
+  "directories"   : { "test": "./test" },
   "engines"       : { "node": ">= 0.1.100" }
 }