Enable install from remote (git)

Author: mjackson

.npmignore

@@ -1,9 +1,6 @@
 examples
 scripts
-website
 __tests__
-bower.json
 karma.conf.js
 tests.webpack.js
 webpack.config.js
-.babelrc

package.json

@@ -14,8 +14,9 @@
     "build-umd": "NODE_ENV=production webpack modules/index.js umd/ReactRouter.js",
     "build-min": "NODE_ENV=production webpack -p modules/index.js umd/ReactRouter.min.js",
     "start": "webpack-dev-server --config examples/webpack.config.js --content-base examples --inline",
-    "test": "eslint modules && karma start",
+    "test": "npm run lint && karma start",
     "lint": "eslint modules",
+    "postinstall": "node -e \"require('fs').stat('lib', function (e, s) { process.exit(e || !s.isDirectory() ? 1 : 0) })\" || npm run build",
     "prepublish": "npm run build"
   },
   "authors": [