Improve help description
Improve code formatting
Add initial attempt at new index page

The new index page will display the entire list of matches allowing the
user to click on the match and then score it.
Update srcomp submodule
Update score form

Remove input boxes for the TLA and use radio buttons for the slot
fields.
Implement loading previous scores
Implement saving scores
Improve match list

The match list now makes more use of space.