Bring back accidentally removed package description

Author: soulim

package.json

@@ -1,7 +1,7 @@
 {
   "name": "ember-cli-bootstrap-datepicker",
-  "version": "0.0.0",
-  "description": "The default blueprint for ember-cli addons.",
+  "version": "0.3.4",
+  "description": "Datepicker component for Ember CLI based on bootstrap-datepicker. It doesn't have any external dependency except bootstrap-datepicker, supports popup and inline modes.",
   "directories": {
     "doc": "doc",
     "test": "tests"