Issue Description:

When the config is set to use hard recipes ie:

# How expensive should the crafting recipes be? -1=don't register any crafting/smelting recipes, 0=cheapest, 1=cheaper, 2=normal, 3=expensive
I:recipeLevel=3

The game crashes on load:

What happens:

java.lang.RuntimeException: Recipes config file recipe_materials.xml is invalid: Could not find a crafting ingredient for 'CHASIS_METAL' (stack=null, object=null) in recipe 'Gear'
at crazypants.enderio.CommonProxy.init(CommonProxy.java:94)
at crazypants.enderio.ClientProxy.init(ClientProxy.java:258)
at crazypants.enderio.EnderIO.load(EnderIO.java:441)

What you expected to happen:

No crashing...

Steps to reproduce:

1. Define recipe level to 3
   2.
   3.
   ...

Affected Versions (Do not use "latest"):

• EnderIO: 3.0.0.43alpha
• EnderCore: 0.4.0.26-alpha
  crash-2016-06-20_17.38.52-client.txt
• Minecraft: 1.9.4
• Forge: 1968

Your most recent log file where the issue was present:

[pastebin/gist/etc link here]

thx, will be fixed in next build