#358 Ensure lowercase player name, issue cleanup

- Ensure within PasswordSecurity that the player name is lowercase
- Remove check for MD5VB separate salt (we only generate hashes with the salt embedded, so either we need to change that or we don't need this check)
- Remove obsolete TODO

src/main/java/fr/xephi/authme/command/executable/authme/ChangePasswordAdminCommand.java

@@ -67,8 +67,8 @@ public class ChangePasswordAdminCommand implements ExecutableCommand {
                     return;
                 }
 
-                // TODO #358: Do we always pass lowercase name?? In that case we need to do that in PasswordSecurity!
-                EncryptedPassword encryptedPassword = commandService.getPasswordSecurity().computeHash(playerPass, playerNameLowerCase);
+                EncryptedPassword encryptedPassword = commandService.getPasswordSecurity()
+                    .computeHash(playerPass, playerNameLowerCase);
                 auth.setPassword(encryptedPassword);
 
                 if (!dataSource.updatePassword(auth)) {