#1113 Handle LimboPlayers within LimboService (remove LimboCache) (work in progress)

- Delete LimboCache and LimboPlayerStorage: LimboService now handles all LimboPlayer actions
- Revoke player rights when creating a LimboPlayer, within the LimboService
- Various fixes and improvements

src/test/java/fr/xephi/authme/command/executable/authme/RegisterAdminCommandTest.java

@@ -2,7 +2,6 @@ package fr.xephi.authme.command.executable.authme;
 
 import fr.xephi.authme.TestHelper;
 import fr.xephi.authme.data.auth.PlayerAuth;
-import fr.xephi.authme.data.limbo.LimboService;
 import fr.xephi.authme.datasource.DataSource;
 import fr.xephi.authme.message.MessageKey;
 import fr.xephi.authme.security.PasswordSecurity;
@@ -56,9 +55,6 @@ public class RegisterAdminCommandTest {
     @Mock
     private ValidationService validationService;
 
-    @Mock
-    private LimboService limboService;
-
     @BeforeClass
     public static void setUpLogger() {
         TestHelper.setupLogger();