Add support of design documen'st information retrival

[GoogleCodeExporter]

There is /db/_design/name/_info call that return helpful information about 
design document.

Path attached.

Original issue reported on code.google.com by daevaorn on 22 Sep 2010 at 11:29

Attachments:

• ddoc_info.diff

[GoogleCodeExporter]

Pushed as r2f11bb5ecdc6. Thanks! Next time, it would be helpful if you could 
add a test to your patches. I've done so in r62ea297c475.

Original comment by djc.ochtman on 22 Dec 2010 at 10:18

• Changed state: Fixed