Merge pull request #2 from Kyle873/master

kyle is cool
TERM WUZ HERE, KYLE IS A DORK :DDD
All weapon pickups have been replaced. Berserk has been replaced. Grenade now goes through other bullets.
This took more effort than I thought it would. Weapon swapping is now instantaneous, and probably will remain instantaneous until I get actual weapon sprites.
Increased damage of shotgun slightly.
Increased damage of grenades slightly.
Player jumps less high but has lower gravity to send her higher.
Changed CustomInventory pickups to inherit from PickupBase. Removed tabs. Gave -COUNTKILL and -ISMONSTER.
Weapons now have an UpSound. Dodging implemented, though needs more stylish effects.
KubiSpinAttack buffs given out by combo levels have been weakened. Dodging gives half a second of ghost to avoid fire.
Enemy shots are no longer stopped by explosions.
Intermusic changed. A little over 5% of the song is used and it was released as a free download in 2004, so I'm pretty sure this counts as fair use.
Players were still way too survivable in armor. Now there are only max five armor tokens.
Weapons no longer all cram in slotnumber 1. Pistol is 2, shotgun is 3, uzi is 4, launcher is 5.
Corpses no longer count as monsters and are no longer solid.
Soulsphere now gives you Over-Life Tokens. Megasphere maxes errything out.
Imp no longer blocks players after death.
Power jump deprecated until viable alternative can be found.
Conflicting weaponslot entries have been removed.
Confirm messages added for all difficulties.