Projectile Juice, Screen shake (optional), Increased max save game slots to 8

A small update tonight, added some extra graphical "juice" and increased the maximum number of save game slots. [h1]Details:[/h1] [list] [*] Added extra particle effects to all projectile weapons except for Railguns [*] Added screen shake back, which can be disabled from the graphics settings menu [*] Increased maximum save game slots to 8 from 4 [/list] Some gameplay footage of these changes: https://www.youtube.com/watch?v=w97Orhtx1HY&hd=1 https://www.youtube.com/watch?v=DMw9QKUlj3w&hd=1