Convert to mysqli

This commit converts all mysql_* function to the appropriate counterparts
in mysqli.
I used this tool for most of it:
https://github.com/philip/MySQLConverterTool
This makes it possible to continue using MysqlDumper with PHP 7.0

inc/sqlbrowser/sql_record_insert_inputmask.php

@@ -6,12 +6,12 @@ $tpl->set_filenames(array(
 
 $sqledit="SHOW FIELDS FROM `$tablename`";
 $res=MSD_query($sqledit);
-$num=mysql_numrows($res);
+$num=mysqli_num_rows($res);
 
 $feldnamen="";
 for ($x=0; $x<$num; $x++)
 {
-	$row=mysql_fetch_object($res);
+	$row=mysqli_fetch_object($res);
 	$feldnamen.=$row->Field.'|';
 	$tpl->assign_block_vars('ROW',array(
 		'CLASS' => ($x%2) ? 1 : 2,