Core/Battle.net: Additional checks

* Force grunt login for versions < 15595
* Force bn login if supported and game account is linked to bn account

src/server/shared/Database/Implementation/LoginDatabase.cpp

@@ -37,7 +37,7 @@ void LoginDatabaseConnection::DoPrepareStatements()
     PrepareStatement(LOGIN_SEL_SESSIONKEY, "SELECT a.sessionkey, a.id, aa.gmlevel  FROM account a LEFT JOIN account_access aa ON (a.id = aa.id) WHERE username = ?", CONNECTION_SYNCH);
     PrepareStatement(LOGIN_UPD_VS, "UPDATE account SET v = ?, s = ? WHERE username = ?", CONNECTION_ASYNC);
     PrepareStatement(LOGIN_UPD_LOGONPROOF, "UPDATE account SET sessionkey = ?, last_ip = ?, last_login = NOW(), locale = ?, failed_logins = 0, os = ? WHERE username = ?", CONNECTION_SYNCH);
-    PrepareStatement(LOGIN_SEL_LOGONCHALLENGE, "SELECT a.sha_pass_hash, a.id, a.locked, a.lock_country, a.last_ip, aa.gmlevel, a.v, a.s, a.token_key FROM account a LEFT JOIN account_access aa ON (a.id = aa.id) WHERE a.username = ?", CONNECTION_SYNCH);
+    PrepareStatement(LOGIN_SEL_LOGONCHALLENGE, "SELECT a.sha_pass_hash, a.id, a.locked, a.lock_country, a.last_ip, aa.gmlevel, a.v, a.s, a.token_key, a.battlenet_account FROM account a LEFT JOIN account_access aa ON (a.id = aa.id) WHERE a.username = ?", CONNECTION_SYNCH);
     PrepareStatement(LOGIN_SEL_LOGON_COUNTRY, "SELECT country FROM ip2nation WHERE ip < ? ORDER BY ip DESC LIMIT 0,1", CONNECTION_SYNCH);
     PrepareStatement(LOGIN_UPD_FAILEDLOGINS, "UPDATE account SET failed_logins = failed_logins + 1 WHERE username = ?", CONNECTION_ASYNC);
     PrepareStatement(LOGIN_SEL_FAILEDLOGINS, "SELECT id, failed_logins FROM account WHERE username = ?", CONNECTION_SYNCH);