New: Added Admin page (fixes #30)

fixes #30

Added .gittouch

> If src/admin/public/js/app.js doesn't exist, the site fails to load (404, can't GET /js/app.js). Reproduced on OS X and Debian Wheezy.

But app.js is still not part of the repo. Should I add it on gitignore ? or a build script?
This is still not true as I said in my previous comment. Here is proof:

```coffeescript
-> % coffee
coffee> p = require 'properties'
{ parse: [Function],
  stringify: [Function],
  createStringifier: [Function] }
coffee> p.stringify {a: 3, c: 'asdf'}
'a = 3\nc = asdf'
```

Please remove the `ini` module and user `properties`. No reason for requiring it has been demonstrated, and we want to keep unnecessary dependencies down to an absolute minimum for security reasons.