Merge Grunt and add OpenBadges plugin

some of this should be refactored/renamed for clarity. Be that as it may...

'badges' plugin displays the first public group in an openbadges.org backpack owned by the owner of a page, even when accessed remotely. forking the page makes the plugin display the new owners badges, so as to avoid passing anothers credentials as you're own.

This begins to explore the difference between a 'page owner' and a 'wiki owner'. I think keeping track of both in an orderly manner is going to be important as federated wiki's grow.

I use the backpack userId here as the 'steward' attribute of a page. Ultimately, if SFW starts acting as persona-IdP/backpack hosting (which would be super cool) then it could provide it's own unique userID.

Does Persona or login.persona.org provide any means of uniquely identifying users without passing around their email address?