Fix up some Sphinx references
Some work towards a 'clone' method. meh.
Missing import
Doc index page reorg
On second thought, viewcode is pretty ugly, let's leave it off for now
Minor doc fixes
Overhaul formatting of API docs
Tweak index page links for tutorial
Cleanup Context API docs, ensure __init__'s get shown globally
Move execution ramblings to a non-doc design folder; nuke bad ref