* Feat: Compatible up to WP 5.6.1
* Feat: Option to clean folders uploads, plugins and themes before updating staging site
* Feat: Option to clean folders uploads, plugins and/or themes during push
* Feat: Option to symlink uploads folder incl. images from staging to production site. No need to copy images between staging and production site anymore
* Feat: Show creator user name of staging site
* Feat: Add option to toggle mail sending through settings on staging site
* Feat: Add filters for overriding mail sending
* Enh: Show notice if sending mails are disabled
* Enh: Show message and stop execution if php version is lower than 5.5
* Enh: Abort cloning process if table already exists in external database
* Fix: Can not update database credentials in staging sites wp-config.php under rare circumstances
* Fix: During the update process if options table was not selected it didn't get skipped
* Fix: Error if WP is lower than 4.6
* Fix: Can not delete entire staging site on error
* Fix: Activating pro version does not properly disable free version
