V0.6

• SECURITY: Escaped text on output.
• BUG FIX: Fixed a warning if the level's expiration date was not set at checkout.
• BUG FIX/ENHANCEMENT: Added a wrapper function for the pmpro_ipnhandler_level hook to ensure correct arguments are passed into this hook. Thanks @aquiferweb.
• ENHANCEMENT: Stopped autoloading set expiration date option. This should improve performance for sites that have a lot of membership levels with a set expiration date.
• ENHANCEMENT: Added in "Set Expiration Date" to level's table in the admin area to easily see which levels have these options set.
• ENHANCEMENT: Show a warning inside the admin area, if a level has a past date set.
• ENHANCEMENT: Allow localization/translations. Thanks to @skotperez for the French translation files.
• ENHANCEMENT: Rebuilt logic around calculating date, supports multi-digit placeholders.
• ENHANCEMENT: Added new filters to allow developers to dynamically adjust dates: 'pmprosed_expiration_date_raw' and 'pmprosed_expiration_date'.