Fix package.json and add .npmignore

.npmignore

+dist
+examples
+shims
+test
\ No newline at end of file

examples/export.js

 var PSD = require('../');
 
-psd = PSD.open('./examples/images/example.psd').then(function (psd) {
-  psd.image.saveAsPng('./output.png')
+var file = process.argv[2] || './examples/images/example.psd';
+var start = new Date();
+psd = PSD.open(file).then(function (psd) {
+  psd.image.saveAsPng('./output.png').then(function () {
+    console.log("Finished in " + ((new Date()) - start) + "ms");
+  });
 });
\ No newline at end of file

package.json

 {
   "name": "psd",
   "version": "0.0.1",
+  "main": "./index.js",
   "dependencies": {
     "coffee-script": "~ 1.7.1",
     "jspack": "~ 0.0.3",
@@ -9,7 +10,9 @@
     "rsvp": "~ 3.0.6",
     "lodash": "~ 2.4"
   },
-  "test": "mocha test",
+  "scripts": {
+    "test": "./node_modules/mocha/bin/mocha test"
+  },
   "devDependencies": {
     "coffeeify": "~ 0.6.0",
     "browserify": "~ 3.46.0",