v0.15.5

v0.15.5 updates:
- removed Pancake Batter Pot:
as a must have upgrade it limited upgrade variety. Weapons buffed accordingly.
- fleshed out the Pentagram "Riddle" up until it's last stage (still cannot Unlock Harry, sorry :D)
- added 3 challenges related to the Pentagram
- added "Good Boy Buff" in Level 1