Paid Memberships Pro 3.0.4

* FEATURE: Added a "User Fields" tab to the settings page. You can now add "Register Helper" style fields through the WP admin dashboard without code.
* FEATURE: The "Add Ons" tab has a new look, with better browsing and searching.
* FEATURE: Added support for level templates to more easily allow admins to create popular types of levels.
* FEATURE: Added a CSV export option to the built-in reports.
* ENHANCEMENT: Redesigned the Add/Edit Membership Level screen to focus on the applicable settings for the type of level.
* ENHANCEMENT: Testing PHP sessions in site health now.
* ENHANCEMENT: Fixed doc block for the pmpro_getLevel() function.
* ENHANCEMENT: Showing a notice on the PMPro settings pages if the next update for PMPro has an "update notice" section in the readme for that version.
* ENHANCEMENT: Removed the odd line break from the "Powered by Paid Memberships Pro" HTML comment.
* ENHANCEMENT: Added filter pmpro_membershiplevels_page_action_links to add/modify buttons on the Settings > Membership Levels admin page.
* ENHANCEMENT: Added pmpro_unhandled_webhook action that is thrown when a webhook or IPN handler encounters a webhook that isn't processed by PMPro. You can use this hook to log these cases for debugging purposes.
* ENHANCEMENT: Disabled the credit card options for the Stripe gateway. Instead, it now says "We accept all major credit cards".
* ENHANCEMENT: Added a pmpro_order_status_{status} hook that is fired whenever an order's status changes. Passes the $status, $order, and $original_status as params.
* BUG FIX/ENHANCEMENT: Added the pmpro_calculate_profile_start_date() function, which is used in all built-in gateways now. This fixes some issues with inconsistencies for subscriptions with multiple month billing periods.
* BUG FIX/ENHANCEMENT: Now handling the subscr_failed IPN message for PayPal. This message is now sent sometimes instead of the "recurring_payment_skipped" one.
* BUG FIX/ENHANCEMENT: The PayPal IPN handler is now treating "Voided", "Denied", and "Expired" payment statuses similar to "Failed".
* BUG FIX/ENHANCEMENT: Now requiring a name when adding/editing a level.
* BUG FIX/ENHANCEMENT: Updates to the level save logic to avoid some edge case issues. (@ideadude)
* BUG FIX/ENHANCEMENT: Removed some trailing commas in arrays that were breaking PHP 5.6 users.
* BUG FIX: Fixed "No such product" bug that happened sometimes when checking out with Stripe. We catch this now and create the products when they are missing.
* REFACTOR: Removed update notice RE Better Login Reports being merged into core PMPro (which happened a few years ago). Now using the general deprecation notices RE old add ons.
* REFACTOR: Refactored the MemberOrder class a bit to avoid PHP 8+ warnings.

* BUG FIX/ENHANCEMENT: Fixed typos in some block descriptions. #2064 (@mircobabini)
* BUG FIX: Fixed issue where the digest email cron and some others were running more often than intended. #2070 (@mircobabini)

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* FEATURE: Added refunds buttons for Stripe and Paypal Express orders.
* FEATURE: Released Beta version of Stripe Checkout. Add `define('PMPRO_STRIPE_CHECKOUT_BETA_ENABLED', true);` to your wp-config.php to enable this gateway during the beta.
* ENHANCEMENT: Introduced a new set of functions that handle cron-related tasks including: `pmpro_get_crons()` to get the list of PMPro registered crons.
* ENHANCEMENT: New filter `pmpro_registered_crons` which you can register new crons to be handled by PMPro. They show up in the PMPro Site Health info and are automatically scheduled when they need to be.
* ENHANCEMENT: Added an opt-in stats collection so we can get better insight on how people use Paid Memberships Pro.
* ENHANCEMENT: Added Formal German translation files.
* ENHANCEMENT: Tracking library conflicts in Site Health, e.g. when other plugins are loading gateway libraries at the same time as PMPro.
* ENHANCEMENT: UI/UX improvements to the Orders admin area for list and single edit view.
* ENHANCEMENT: Improved the UI for email template variables reference on the Settings > Email Templates admin page.
* ENHANCEMENT: Various other UI improvements to the admin area.
* ENHANCEMENT: Improved block names, descriptions, keywords, and organization for discover and usability.
* ENHANCEMENT: Added "show_noaccess" as a setting on the Membership Required block for swapping in the appropriate content message.
* ENHANCEMENT: Added filter 'pmpro_braintree_transaction_sale_array' to allow adding or adjusting of the sale transaction method.
* ENHANCEMENT: Moved the TOS input inside the label to support multiline i18n.
* ENHANCEMENT: Added new action `pmpro_checkout_after_tos` to output content after the TOS.
* ENHANCEMENT: Added filters to change gateway ipn/webhook logfile.
* ENHANCEMENT: Added filter to perform actions during PPHttpPost() method of the PayPal gateways.
* ENHANCEMENT: Added untranslated gateway identifiers to Site Health info.
* BUG FIX/ENHANCEMENT: Fixed escaping and localization for many strings across the codebase.
* BUG FIX/ENHANCEMENT: Resolve admin area conflicts with other plugins using similar class names.
* BUG FIX: Crons are now automatically rescheduled if they disappear form the cron schedule.
* BUG FIX: Resolved problems with PHP float precision and prevent passing along faulty floats to the gateway APIs.
* BUG FIX: Fixed issue where TOS setting was not saving when using the PayFast gateway.
* BUG FIX: Fixed issue where the is_renewal() method didn't work during the pmpro_added_order hook.