[ENH] - Campaigns removal will be blocked if the campaign is a dependency for an autoresponder
[ENH] - Add ability to use v4 for Google Analytics
[ENH] - Remove limit for campaign custom and extra tags
[ENH] - In campaign setup step, for related campaigns, bring the options together with the campaign so we don't do multiple queries anymore
[ENG] - Add database index for the category/message combo for translation_source_message table
[ADD] - Added two new tags: [SUBSCRIBER_EMAIL_NAME] and [SUBSCRIBER_EMAIL_DOMAIN]
[CHG] - List custom fields sync will be enabled by default. If performance is affected, disable from Backend > Settings > Cron > List Subscribers
[ADD] - List custom fields sync will automatically run after each import and/or each time when the list custom fields are updated
[ADD] - Added a new action hook: list_import_finished
[ENH] - On campaigns list pages, the status and stats(opens/clicks/bounces/etc) columns will be loaded via ajax per campaign basis
[MSC] - Overall fixes
[UPD] - Updated composer packages
