Add ability to specify hash prefix

[cowboy]

(to work around Google's crawlable AJAX URL spec)

Reference http://code.google.com/web/ajaxcrawling/docs/getting-started.html

[bminer]

Yes, please!

[chrisjacob]

I would love to see this added in. Search indexing is very important. Also I wouldn't imagine adding this feature wouldn't be too difficult. You mentioned a "wrapper" function could be used. A Gist for this code would be great while we wait.

Thank you so much for the brilliant plugins you've authored.

[jverdi]

Came here looking specifically to request this feature. Thanks!

[ms440]

Yes, please!