IMPORTANT!!!
Automatic part of upgade is completed. Please do the following to complete upgrade process:

- Add the following lines to inc/header.inc.php file:

      define('BX_DOL_SPLASH_VIS_DISABLE', 'disable');
      define('BX_DOL_SPLASH_VIS_INDEX', 'index');
      define('BX_DOL_SPLASH_VIS_ALL', 'all');

  after the following:

      define('DATABASE_PASS', $db['passwd']);
      define('DATABASE_NAME', $db['db']);

- Change the following line in inc/header.inc.php file:

      error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED);

  to the following:

      error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED & ~E_STRICT);

- Change the following lines in inc/header.inc.php file:

      $site['ver']               = '7.0';
      $site['build']             = '9';

  to the following:

      $site['ver']               = '7.1';
      $site['build']             = '0';

- Delete unused files by executing the following command from SSH :

      php ./upgrade/files/7.0.9-7.1.0.B1/delete_unused_files.php

- Remove /upgrade/ directory
- Clean /cache/, /cache_public/ and /tmp/ folders via FTP or SSH, leave only .htaccess file there if one exists
- Recompile system language file from Admin Panel -> Settings -> Languages Settings -> Languages
- Clean /cache/ folder again
- Recompile Forum language file from Admin Panel -> Modules -> Forum -> Manage Forum
- Now you can install back Spy and Timeline(former Wall) modules. Also you can install new World Map module as well. To do it - go to Admin Panel -> Modules -> Add & Manage.
- Captcha were replaced with reCaptcha, to use it you need special keys. Go to reCaptcha website, generate your keys and enter them in Admin Panel -> Settings -> Advanced Settings -> Security.
- Pages Width, Page Blocks positions and Page Columns were reset to default. Many blocks (and all 3rd-party blocks) were deactivated(they are inactive now), you can activate them by dragging to the desired position in Admin Panel -> Builders -> Pages Builder.