Fixed attacker and inflictor not resetting for fall damage

Improved prediction on the Boomstick
Lowered the Rocket Jumper's sound
Made it easier to hit players with the Yeetbaton

Added the Rocket Jumper (HL2)
Added the Gravity Jumper
Fixed velocity calculation
Changed Boomstick force
Players will now have decreased friction after being pushed by any jumper, until they're on the ground and slow enough
Added a kill icon
Added an explosion effect

Added settings presets

Renamed init.lua to avoid conflicts

Added ConVars for the Boomstick and changed its ammo management

Fixed bug

Fixed bug

Fixed NULL entity error

Fixed models