Mailster - Email Newsletter Plugin for WordPress 4.0.8

added: mailster_add_embeded_style method to add custom embeded styles.
added: option to enable sending usage statistics.
fixed: issue with double quotes in background-image property
fixed: correct saving of form option
fixed: delivery issue with some third party apps
improved: editor behavior when adding content in multiple areas.
improved: styles added via mailster_add(_embeded)_style are now visible in the editor.
improved: inline styles can now be skipped with an optional data-embed attribute
improved: block comments now removed if present in the email
improved: better action handling for mails opened on Yahoo
improved: editor behavior
improved: handling of options
improved: removed some variables from the global space

new: option to choose original image in editbar (for animated gifs)
fixed: wrong subscriber count in dashboard widget if assigned to multiple lists
fixed: auto expanding of chart on dashboard
fixed: title with quotes now escaped correctly
fixed: calculation of images if height is set to “auto”
fixes: template file selection on system mails are now respected correctly
improved: wp_mail wrapper now supports to address in format name
improved: wp_mail handling of reply-to, BCC and CC fields
improved: DNS checks on settings page now asynchronous
improved: subscribers now get removed from the queue if a bounce happens
improved: better warning on import for pending subscribers
improved: auto responder data now stored if campaign is saved as draft
improved: handling of script tags during sanitation
added: mailster_allowed_script_domains and mailster_allowed_script_types filter hooks
added: condition “is in list” for better segmentation
added: option to re test a test

-fully tested on WordPress 5.0
-fixed: missing icons in WordPress 5.0
-fixed: prevent tracking on test mails
-fixed: relative width attributes now preserved in the editor
-fixed: issues with wp_mail if reply_to is an array
-improved: better checks if wp_mail is defined by another plugin