First update pass (1/3) - ~1400 -> 82 errors

This is first update pass, which is mainly import reorganization, name
fixes, etc... Although some parts of second were done where changes
aren't important.
Errors: ~1400 -> 82.

src/main/java/appeng/debug/BlockItemGen.java

@@ -32,7 +32,7 @@ public class BlockItemGen extends AEBaseTileBlock
 
 	public BlockItemGen()
 	{
-		super( Material.iron );
+		super( Material.IRON );
 		this.setTileEntity( TileItemGen.class );
 		this.setFeature( EnumSet.of( AEFeature.UnsupportedDeveloperTools, AEFeature.Creative ) );
 	}