Mailster - Email Newsletter Plugin for WordPress 4.0.8

• added: support for the SparkPost add on
• fixed: some tags with alternative content were not replaced when sending a test campaign
• fixed: module screenshots returned error if more than 30 modules in template
• improved: unsubscribe action can now contain a status for more info
• change: send method now returns internal message ID
• change: test mails to unknown email addresses are no longer assigned to the current user to prevent false mailbox actions

* fixed: radio and dropdown values weren't populated on profile in some cases
* fixed: wp_mail now supports coma separated emails if used by Mailster
* fixed: PHP notice with autoresponders on PHP 7.1
* fixed: link for buttons were pre filled with the URL from the previous selected button
* fixed: PHP notices on Cron lock
* fixed: issue with defined constants if GEO library is loaded in a third party plugin
* fixed: display issue of emojis in tinymce of multi elements
* fixed: link of images wasn't populated correctly
* fixed: reading filesize on missing file during export
* improved: ever re-signup will respect the forms double-opt-in setting
* improved: using SQL_CALC_FOUND_ROWS on subscribers overview to speed up queries
* improved: form profile compatibility with certain themes
* improved: get referer on form signup
* improved: pre cache queries on autoresponder overview
* added: option for legacy POP3 method on bounce settings
* added: 'mailster_update_option_*' filter to alter option on save
* added: 'mailster_get_signups_sql', 'mailster_queue_campaign_subscriber_data' filters
* added: 'mailster_cookie_time' filter to adjust Mailster cookie expiration time
* added: 'mailster_get_current_user' and 'mailster_get_current_user_id' methods
* changed: 'mailster_unsubscribe_link' hook position and added campaign_id to arguments

• fully tested on WordPress 4.8
• fixed: exporting subscribers
• fixed: strip slashes on list descriptions
• fixed: SQL issue when unassign lists from subscribers
• fixed: encoding issue while saving campaigns on some servers
• improved: display Mailster username on Dashboard
• improved: removed usage of create_function for PHP 7.2
• improved: better sanitation and checks on date fields
• added: mailster_keep_tags filter to keep tags
• change: some default values on plugin activation