* FIX: Misreporting of plugin's update statuses in notification emails, which were labeled "success" instead of the appropriate designation of "failed"
* TWEAK: Improve the strategy for using an associative array to filter option default values, aiming to safeguard existing defaults from removal and to prevent the introduction of non-relevant options
* TWEAK: The notification email should omit any "failed" update status for plugins, themes and translations if they lack the corresponding name...