Updated to 1.7.10

I know that you're busy with a million other things, so I did this for you. :P

Removed IC2 API and added it as a dep in the buildscript. Removed some unused imports. Updated gitignore and chmod +x  on gradlew. Also bumped Gradle wrapper to 1.12. This is backwards compatible, so I didn't know if I should update the Forge and IC2 required versions.