Build v0.18

Build  v0.18

---=Changes=---

-HP/MP regen is now based on flat amounts, not max HP percent
-Added HP Shield capabilities
-Added Crystal Weapons, skills, and Quest

---=Bugs fixed=---
-Fifth bow for "Arming the rear guard" was hiding behind a pillar
-Loot pets would not follow the player into a dungeon
-Locked skill icons were able to be dragged to hotbar
-Quest Titles and loot icons would scroll off the window