Fix the 1.7+ SLP stuff.

Props to @Minecrell

src/main/java/io/minimum/minecraft/velocity/data/ServerPing.java

@@ -43,26 +43,26 @@ public class ServerPing {
 
     public static class Version {
         private final int protocol;
-        private final String version;
+        private final String name;
 
-        public Version(int protocol, String version) {
+        public Version(int protocol, String name) {
             this.protocol = protocol;
-            this.version = version;
+            this.name = name;
         }
 
         public int getProtocol() {
             return protocol;
         }
 
-        public String getVersion() {
+        public String getName() {
-            return version;
+            return name;
         }
 
         @Override
         public String toString() {
             return "Version{" +
                     "protocol=" + protocol +
-                    ", version='" + version + '\'' +
+                    ", name='" + name + '\'' +
                     '}';
         }
     }

src/main/java/io/minimum/minecraft/velocity/protocol/netty/MinecraftDecoder.java

@@ -21,7 +21,7 @@ public class MinecraftDecoder extends MessageToMessageDecoder<ByteBuf> {
 
     @Override
     protected void decode(ChannelHandlerContext ctx, ByteBuf msg, List<Object> out) throws Exception {
-        if (msg.isReadable()) {
+        if (!msg.isReadable()) {
             return;
         }
 

src/main/java/io/minimum/minecraft/velocity/protocol/packets/LegacyPingResponse.java

@@ -74,7 +74,7 @@ public class LegacyPingResponse {
 
     public static LegacyPingResponse from(ServerPing ping) {
         return new LegacyPingResponse(ping.getVersion().getProtocol(),
-                ping.getVersion().getVersion(),
+                ping.getVersion().getName(),
                 ComponentSerializers.LEGACY.serialize(ping.getDescription()),
                 ping.getPlayers().getOnline(),
                 ping.getPlayers().getMax());