change POST to PUT

[svnlto]

.. in the method map. according to: http://pouchdb.com/2014/06/17/12-pro-tips-for-better-code-with-pouchdb.html

[jo]

Backbone Pouch leaves this decision up to the user. If the users supplies an id, Backbone Pouch will use put, otherwise post.

I also like meaningful ids ;) but I don't think it should be enforced by Backbone Pouch.

[svnlto]

Thanks for clarification :)