turingou/douban.fm — pull request #65 by fengmk2 (2014-01-27 05:54:10+00:00)
Title: ensure dir exists first.

Otherwise the first config will fails:

```bash
$ douban.fm config
prompt: Douban Email: fengmk2@gmail.com
prompt: Douban Password:
{ [Error: ENOENT, open '/Users/mk2/douban.fm/.configs.json']
errno: 34,
code: 'ENOENT',
path: '/Users/mk2/douban.fm/.configs.json' }
```