Hitboxes fixed? Ligthing tweaks? More spawns!

The game should not be as dark as it was. Also, this version has a standalone download too, so you can enjoy increased performance.

• Maybe better hitboxes.

• Can no longer shoot through walls (at least not without huge difficulty)

• Added black cubes/slopes/tetras (thanks Maxmani)

• Nicer spawnable selection menu(categorized and responsive)

• Exit button for standalone clients. Can play fullscreen with Alt+Tabbing now!

• More spawns (in forest)

• Shadows not so dark now.

Probably something else I might have missed, probably something important. See you in game!