Turbo for Distant Horizons

Added

• ReTerraForged: From the Ashes support: its continents, mountains and rivers now show in the distance as it generates them. Before, the distant terrain of its worlds did not match the real one at all. Its erosion is not drawn, so distant land can sit a few blocks higher than the real chunks. In multiplayer the server draws these worlds; players do not generate them themselves.
• Worlds whose terrain the mod cannot read (for example a mod with its own chunk generator) are detected when they load and left to the Distant Horizons generator, with a line in the log saying why, instead of being drawn wrong.

Fixed

• Near you, forests of terrain mods with trees of their own (ReTerraForged) were bare in the distance: they get the mod's tree shapes now.