Added Marathi language translations

Hi,

This commit includes the complete Marathi language translations based on the latest English .json.

Also regarding the Hindi language... I think the folder should be /hi_IN and not only /hi. Please refer http://lh.2xlibre.net/locale/hi_IN/

Haven't committed that since I've only committed Marathi related changes here, but I though I should bring it to your notice.

Anyways fantastic extension, and very light!

Regards,
Sandeep