add author, homepage and description to bower.js

bower.json

@@ -1,6 +1,11 @@
 {
   "name": "qrcode.js",
   "version": "0.0.1",
+  "homepage": "https://github.com/davidshimjs/qrcodejs",
+  "authors": [
+    "Sangmin Shim", "Sangmin Shim <ssm0123@gmail.com> (http://jaguarjs.com)",
+  ],
+  "description": "Cross-browser QRCode generator for javascript",
   "main": "qrcode.js",
   "ignore": [
     "bower_components",