Add <title>
Add a starting screen
Close the socket when starting new game
Start screen button changes
Reflect bullet-wall explosions against wall
Tweak bullet-wall explosion constants

This partially reverts 07f8a43, and makes explosions look more
lightweight again.
Better explain.png
Merge branch 'starting-screen' into dev

Conflicts:
	client/game/runner.js
	client/style.css
Change explain icon order
Remove nogamethingyoptions
To fast for myself
Merge branch 'dev'