Issue description:

NPE when crafting IndustrialCraft Advanced Circuit via Pattern in Crafter. Normal Circuit does not throw Exceptions. I guess ItemStack can be null?

What happens:

Server shuts down with NPE at com.raoulvdberge.refinedstorage.apiimpl.autocrafting.CraftingPattern.getOutputs(CraftingPattern.java:203) (not sure why there's a curly in the current code at this line but i definitely just downloaded the latest version an hour ago)

What you expected to happen:

Item gets crafted... I guess?

Steps to reproduce:

1. Try to craft Pattern of IndustrialCraft Advanced Circuit in Crafter

Version (Make sure you are on the latest version before reporting):

• Minecraft: 1.10.2
• Forge: 1.10.2-12.18.2.2124
• Refined Storage: 1.2.7 (updated from 1.2.4 in Direwolf's 1.10 pack)

Does this issue occur on a server? [yes/no]
yes

If a (crash)log is relevant for this issue, link it here:

http://pastebin.com/1BtZ1qFE

Full MC crash report just in case

http://pastebin.com/n7FVMCWj

Same as #586, fix incoming