Lots O' Muts V4.5

Hey, just wanted to let you guys know that Lots O' Muts v4.5 is now live!

This doesn't have any major changes, but I tried to improve the balance by increasing the power of some lesser-used muts
(there are probably also bugfixes, but I haven't been keeping track...)

Changes:

 - Staked Chest gets more damage per kill than before (x2 damage per kill instead of + 8)

 - Energized Intestines lasts longer and scales with weapon damage (it deals the square root of the weapon damage each damage tick)

 - There are also some icon changes to make stuff look nicer