Remove universal jar building for a smaller jar footprint and less conflicts with provided dependencies

core/pom.xml

@@ -28,7 +28,7 @@
         <dependency>
             <groupId>com.zaxxer</groupId>
             <artifactId>HikariCP</artifactId>
-            <version>2.7.6</version>
+            <version>2.7.7</version>
         </dependency>
 
         <!--Logging framework implements slf4j which is required by hikari-->
@@ -50,6 +50,12 @@
             <groupId>net.md-5</groupId>
             <artifactId>bungeecord-config</artifactId>
             <version>1.12-SNAPSHOT</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>*</groupId>
+                    <artifactId>*</artifactId>
+                </exclusion>
+            </exclusions>
         </dependency>
 
         <!-- APIs we can use because they are available in all platforms (Spigot, Bungee, Cauldron) -->

core/src/main/java/com/github/games647/fastlogin/core/mojang/UUIDTypeAdapter.java

@@ -2,6 +2,7 @@ package com.github.games647.fastlogin.core.mojang;
 
 import com.github.games647.fastlogin.core.CommonUtil;
 import com.google.gson.TypeAdapter;
+import com.google.gson.internal.bind.TypeAdapters;
 import com.google.gson.stream.JsonReader;
 import com.google.gson.stream.JsonWriter;
 
@@ -11,10 +12,10 @@ import java.util.UUID;
 public class UUIDTypeAdapter extends TypeAdapter<UUID> {
 
     public void write(JsonWriter out, UUID value) throws IOException {
-        out.value(CommonUtil.toMojangId(value));
+        TypeAdapters.STRING.write(out, CommonUtil.toMojangId(value));
     }
 
     public UUID read(JsonReader in) throws IOException {
-        return CommonUtil.parseId(in.nextString());
+        return CommonUtil.parseId(TypeAdapters.STRING.read(in));
     }
 }