0.4.0 The Last of the Druids

The Fate of the Vaal league. Headline changes:

• New base class: the Druid (Strength/Intelligence shapeshifter - Bear/Wolf/Wyvern forms) with two ascendancies, Shaman and Oracle.
• Fate of the Vaal temple-building league.
• Endgame rebalancing across Abyss, Waystone crafting, and monster density.