Add some text to crash logs about "Unable to lookup" errors

Not like anyone will read it but at least we can make them feel dumb

src/main/java/team/chisel/ChiselCrashCallable.java

@@ -0,0 +1,17 @@
+package team.chisel;
+
+import cpw.mods.fml.common.ICrashCallable;
+
+public class ChiselCrashCallable implements ICrashCallable {
+
+	@Override
+	public String call() throws Exception {
+		return "Errors like \"[FML]: Unable to lookup ...\" are NOT the cause of this crash. "
+				+ "You can safely ignore these errors. And update forge while you're at it.";
+	}
+
+	@Override
+	public String getLabel() {
+		return Chisel.MOD_NAME;
+	}
+}