Admin Columns Pro 6.4.8

* [Fixed] Possible errors during update process
* [Updated] Admin Column Core changes ( 4.0.3 )
* [Updated] Saving column settings for the first time could result in extra database records.

* [Fixed] License key was not persisently stored on multi site environments
* [Added] Core translations are updated
* [Improved] Horizontal scrolling recalculates position after Bulk Edit is finished
* [Updated] Admin Column Core changes ( 4.0.2 )
* [Updated] Fallback for wp_timezone when running WordPress < 5.3
* [Updated] Languages for core version updated

* [Added] New Post Column: Post Visibility
* [Fixed] The default visibility of the Export button should be enabled
* [Fixed] The editing date/time fields in Safari where not populated correctly
* [Fixed] Horizontal Scrolling script could give an error when screen options menu is not available
* [Fixed] Export message on settings page sometimes displayed the wrong message (Enabled or Disabled)
* [Fixed] Correct display of Yoast IsIndexed column
* [Updated] Admin Column Core changes ( 4.0.1 )
* [Fixed] Fatal error in Date helper that occurs in PHP 5.6
* [Improved] Re-added the hook `ac/column/custom_field/use_text_input` to use a text field for the custom field column setting