Very simple mod to put boosters back into the game. Works with all types of minecart in 1.7/1.8, although I'd recommend not boosting TNT carts.
Works with Forge versions 1.7.2, 1.7.10, 1.8.
Implemented using Forge's ability to hook minecart collision handling - won't work with any other mod that uses it.
No client-side support required for servers.