Ace3 upstream: https://github.com/WoWUIDev/Ace3
Embedded revision: d295b12f8b889a30e86e0e901c5494df4b149c49
Vendored components: LibStub, CallbackHandler-1.0, AceAddon-3.0,
AceConsole-3.0, AceDB-3.0, AceGUI-3.0, AceConfig-3.0.
