General:
- Implemented cannonball explosion sound effects from SS3/Fusion.

General:
- Implemented Grenade Launcher and Grenade sound effects from SM.

General:
- Updated all effects to have consistent colours throughout.
- Severely improved effect rendering order.
- Grenades and Shotgun Grenades now create a shockwave + a fast light upon explosion.
- Updated all Chainsaw Explosion effects to more accurately represent the falloff from the explosion.

Lava:
- Fixed gigantic melee hit particle effect.

Ice:
- Updated bullethole decals to fit more accurately onto ice textures.

New features:
- Added a new "Ice_Slide" material for mappers to use! Uses sliding ice mechanics from SM.

General:
- Incorporated fixes from the new SS4 update.
- Optimized and added a few more missing effects.
- Removed redundant particle effect files.

General:
- Ported a few SM sounds/particle effects into SS4!
- Updated melee hit sound effect generation parameters.

General:
- Updated ranges at which the particles show/disappear.
- Fixed up messy water colours in the particles for the water material.
- Updated particle size logic at distances.
- Fixed certain particles showing up at incorrect heights.
- Few more consistency fixes across the board.

General:
- Fixed ECF incompatibility.