Added mods enabling to FSM constructor, with docs

The FullScreenMario constructor is now documented so it should be more
reasonable to understand how to get the darn thing started.
Better example docs for constructor

Helps to know how to start the thing.
A few map fixes, mostly on transport/locations

World 1-1 correctly sets location 1 entrance as the pipe
World 1-2 coins are xwidth: 8
Player correctly switches between Scenery and Character groups during
piping
Started consolidated homepage

The new index.html doesn't yet have the controls section filled in, but
everything else seems to be working.

Hover effects ;)