Lua HUD
Split HUD code off to hud.cpp, make into a class, extensive Lua HUD modification
Add dutch translation
Fix Lua HUD documentation
Add direction parameter to statbars in HUD API
Fix health bar overlap when a larger texture is used
Class-ify caves & move to cavegen.cpp, fix cave regression, add caves to Mapgen V7
Fix hud_change stat argument retrieval
Fix findSpawnPos()
mgv7: Implement getGroundLevelAtPoint(), fix layer of topnodes at chunk Y boundaries, remove growGrass()
Translation to Portuguese of Brazil for Minetest
Added support for alignment in HUD items
Added offset support for HUD items