Add a help lightbox stub template and view object
Removed dead test code.
Move the card-json sort function into the card class.
Save a few method calls when drawing cards.
Split a FoundSet class out of the big Sets game object.
Make sure settings get a chance to save by delaying the codepath.
Add card index numbers to card test file for reference.

Also added a sorted deck option
Wrap the board in a container dom elem which provides positioning
Finish up the first pass at a help/teaching module.

Some of the messages could be better, but the mini board with cards is in and sweet.
Merge branch 'help-lightbox'