Should fix crashes with people using the latest IC versions.

This will require
https://dl.dropboxusercontent.com/u/66472801/industrialcraft-2-api_1.116.354-lf.zip
to be uploaded to machinemuse.minecraftforge.net to work.
Bugfixes for Omniwrench module.
Merge pull request #336 from Andrew2448/ic2fix

Fix for crashes with people using the latest IC versions. Will be backwards compatible until ICustomElectricItem is removed. Also includes Omniwrench module bugfixes.