Fixed PHP warnings in mysql install lib

install/lib/mysql.lib.php

@@ -107,7 +107,7 @@ class db
 	
 	public function setDBName($name) {
 		$this->dbName = $name;
-		$this->_iConnId = mysqli_connect($this->dbHost, $this->dbUser, $this->dbPass);
+		$this->_iConnId = mysqli_connect($this->dbHost, $this->dbUser, $this->dbPass, '', (int)$this->dbPort);
 		if(!((bool)mysqli_query( $this->_iConnId, 'USE `' . $this->dbName . '`'))) {
 			$this->close();
 			$this->_sqlerror('Datenbank nicht gefunden / Database not found');
@@ -204,7 +204,7 @@ class db
 			$try++;
 			$ok = mysqli_ping($this->_iConnId);
 			if(!$ok) {
-				if(!mysqli_connect($this->dbHost, $this->dbUser, $this->dbPass, $this->dbName, '', (int)$this->dbPort)) {
+				if(!mysqli_connect($this->dbHost, $this->dbUser, $this->dbPass, $this->dbName, (int)$this->dbPort)) {
 					if($this->errorNumber == '111') {
 						// server is not available
 						if($try > 9) {