* Replace minetestforfun_game by latest minetest_game stable (0.4.16) as a submodule.

- Customizations made by MFF are moved to other mods. This would permit next upgrades to be more easier.
  - Cherry trees moved to cherry_tree mod as a submodule maintained by sys4-fr.
  - Custom MFF beds, boats, buckets, liquid sources, fences, tools, meze and other nodes/craft definitions moved to nalc mod.
  - Move nyancat mod to mods folder because nyancats no longer exist in minetest_game.
* Move colouredstonebricks mod as a submodule
* Move farming redo mod as a submodule
* Move h2omes mod as a submodule
* Add missing mobs_dung and mese_dragon_inv textures
* Move moreblocks mod as a submodule
* Move moreores mod as a submodule
* Move pipeworks mod as a submodule
* Move player_physics mod as a submodule
* Fix unified_inventory mod (depends.txt)
* Remove definitively watershed mod that was never used in NALC

mods/_misc/depends.txt

@@ -2,3 +2,4 @@ interact
 moretrees?
 nether?
 bushes?
+cherry_tree?

mods/_misc/sapling_crafts.lua

@@ -43,14 +43,17 @@ minetest.register_craft({
 })
 
 -- Cherry trees
-minetest.register_craft({
-      output = "default:cherry_sapling",
-      recipe = {
-	 {"default:cherry_blossom_leaves", "default:cherry_blossom_leaves", "default:cherry_blossom_leaves"},
-	 {"default:cherry_blossom_leaves", "default:cherry_blossom_leaves", "default:cherry_blossom_leaves"},
-	 {"", "default:stick", ""},
-      }
-})
+if minetest.get_modpath("cherry_tree") then
+	minetest.register_craft(
+		{
+			output = "cherry_tree:cherry_sapling",
+			recipe = {
+				{"cherry_tree:cherry_blossom_leaves", "cherry_tree:cherry_blossom_leaves", "cherry_tree:cherry_blossom_leaves"},
+				{"cherry_tree:cherry_blossom_leaves", "cherry_tree:cherry_blossom_leaves", "cherry_tree:cherry_blossom_leaves"},
+				{"", "default:stick", ""},
+			}
+		})
+end
 
 -- With nether
 if minetest.get_modpath("nether") then