Lvl 4 update

Added the new tower, the engineer, and a new enemy, the hyper.

Fixed a glitch where the melee check wouldnt check for the enemies' width and always choose who to attack by who was rawly in front (Which is something i would have to do for projectiles too but its not as noticeable.

Redesigned the main menu screen and added the almanac.

Added some extra special effects for the rocketeer and pirate gunner.