Remove wooden tools from initial_stuff (#27)

Wooden tools are now unknown items, as they have been removed in CTF. They will be converted to their stone variants.

09_swamplands.conf

@@ -3,7 +3,7 @@ author = Xenon
 hint = Dig or bridge to your opponent!
 r = 115
 h = 140
-initial_stuff = default:pick_steel,default:sword_wood,default:torch 10
+initial_stuff = default:pick_steel,default:sword_stone,default:torch 10
 rotation = z
 team.1 = red
 team.1.color = red

10_plain_battle.conf

@@ -8,5 +8,5 @@ rotation = z
 h = 140
 team.2 = blue
 name = Plain battle
-initial_stuff = default:pick_wood,default:sword_stone,default:torch 5
+initial_stuff = default:pick_stone,default:sword_stone,default:torch 5
 r = 110

12_river_valley.conf

@@ -9,4 +9,4 @@ team.2 = blue
 team.2.color = blue
 team.2.pos = (-1,11,-103)
 author = -sniper-
-initial_stuff = default:pick_wood,default:sword_stone,default:torch 3
+initial_stuff = default:pick_stone,default:sword_stone,default:torch 3

13_wall.conf

@@ -5,7 +5,7 @@ rotation = x
 name = The Wall
 hint = Look for a treasure room inside the wall!
 r = 110
-initial_stuff = default:pick_wood,default:sword_wood,default:stick 5,default:torch 3
+initial_stuff = default:pick_stone,default:sword_stone,default:stick 5,default:torch 3
 team.2 = blue
 h = 50
 team.2.color = blue