Remove the check for auth plugins in order to allow auth plugins to

register their hook after the initialization of FastLogin

bukkit/src/main/java/com/github/games647/fastlogin/bukkit/FastLoginBukkit.java

@@ -99,10 +99,10 @@ public class FastLoginBukkit extends JavaPlugin {
         if (bungeeCord) {
             getLogger().info("BungeeCord setting detected. No auth plugin is required");
         } else if (!hookFound) {
-            getLogger().info("No auth plugin were found and bungeecord is deactivated. "
+            getLogger().warning("No auth plugin were found by this plugin "
+                    + "(other plugins could hook into this after the intialization of this plugin)"
+                    + "and bungeecord is deactivated. "
                     + "Either one or both of the checks have to pass in order to use this plugin");
-            setEnabled(false);
-            return;
         }
 
         if (bungeeCord) {

bukkit/src/main/java/com/github/games647/fastlogin/bukkit/listener/ProtocolSupportListener.java

@@ -34,6 +34,11 @@ public class ProtocolSupportListener implements Listener {
         //remove old data every time on a new login in order to keep the session only for one person
         plugin.getSessions().remove(username);
 
+        BukkitAuthPlugin authPlugin = plugin.getAuthPlugin();
+        if (authPlugin == null) {
+            return;
+        }
+
         PlayerProfile playerProfile = plugin.getStorage().getProfile(username, true);
         if (playerProfile != null) {
             if (playerProfile.isPremium()) {
@@ -42,7 +47,6 @@ public class ProtocolSupportListener implements Listener {
                 }
             } else if (playerProfile.getUserId() == -1) {
                 //user not exists in the db
-                BukkitAuthPlugin authPlugin = plugin.getAuthPlugin();
                 try {
                     if (plugin.getConfig().getBoolean("autoRegister") && !authPlugin.isRegistered(username)) {
                         UUID premiumUUID = plugin.getApiConnector().getPremiumUUID(username);

bukkit/src/main/java/com/github/games647/fastlogin/bukkit/listener/StartPacketListener.java

@@ -75,6 +75,11 @@ public class StartPacketListener extends PacketAdapter {
         plugin.getLogger().log(Level.FINER, "Player {0} with {1} connecting to the server"
                 , new Object[]{sessionKey, username});
 
+        BukkitAuthPlugin authPlugin = plugin.getAuthPlugin();
+        if (authPlugin == null) {
+            return;
+        }
+
         PlayerProfile playerProfile = plugin.getStorage().getProfile(username, true);
         if (playerProfile != null) {
             if (playerProfile.isPremium()) {
@@ -83,7 +88,6 @@ public class StartPacketListener extends PacketAdapter {
                 }
             } else if (playerProfile.getUserId() == -1) {
                 //user not exists in the db
-                BukkitAuthPlugin authPlugin = plugin.getAuthPlugin();
                 try {
                     if (plugin.getConfig().getBoolean("autoRegister") && !authPlugin.isRegistered(username)) {
                         UUID premiumUUID = plugin.getApiConnector().getPremiumUUID(username);