Update to 7.61

Changelog:

• File upload validation functions and hook_file_validate() implementations are now always passed the correct file URI.
• The default form cache expiration of 6 hours is now configurable (API addition: https://www.drupal.org/node/2857751).
• Allowed callers of drupal_http_request() to optionally specify an explicit Host header.
• Allowed the + character to appear in usernames.
• PHP 7.2: Fixed Archive_Tar incompatibility.
• PHP 7.2: Removed deprecated function each().
• PHP 7.2: Avoid count() calls on uncountable variables.
• PHP 7.2: Removed deprecated create_function() call.
• PHP 7.2: Make sure variables are arrays in theme_links().
• Fixed theme-settings.php not being loaded on cached forms
• Fixed problem with IE11 & Chrome(PointerEvents enabled) & some Firefox scroll to the top of the page after dragging the bottom item with jquery 1.5 <-> 1.11

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