Small Cleanup (#518)

* Deobfuscate parameters

* Fix generics

* Replace deprecated methods

* Add `serialVersionUID`s

* Fix static access

* Add default switch case

* Close OutputStreams

* Fix wrong variable usage

* Explicitly declare exceptions

src/main/java/codechicken/nei/ClientHandler.java

@@ -296,7 +296,7 @@ public class ClientHandler {
 
         try (BufferedReader reader = new BufferedReader(new InputStreamReader(url.openStream()))) {
             NEIClientConfig.logger.info("Loading handler ordering from file {}", file);
-            CSVParser csvParser = CSVFormat.EXCEL.withCommentMarker('#').parse(reader);
+            CSVParser csvParser = CSVFormat.EXCEL.builder().setCommentMarker('#').build().parse(reader);
             for (CSVRecord record : csvParser) {
                 final String handlerId = record.get(0);
 
@@ -410,9 +410,10 @@ public class ClientHandler {
             }
         };
 
-        @SuppressWarnings("serial")
         CustomModLoadingErrorDisplayException e = new CustomModLoadingErrorDisplayException() {
 
+            private static final long serialVersionUID = -5593387489666663375L;
+
             @Override
             public void initGui(GuiErrorScreen errorScreen, FontRenderer fontRenderer) {
                 Minecraft.getMinecraft().displayGuiScreen(errorGui);