Classic Snake Adventures major update

* NEW FEATURE: Run the snake with 'SPACE'. * Glitch fixed that made you invulnerable. * Hit boxes fixed. Now the hit box detection is more accurate. * Bosses fixed. The lightening now appears in places that are not impossible to reach. * Better handling of mouse selection in map area. * More music. Much more music variety added during gameplay. * Speed portals are now seen much easier. * Some rounds are corrected in world 5. (was impossible)