WPForms Drip Addon 1.6.0

### Added
- GDPR-related data is added to the campaign subscriber meta information.

### Fixed
- Events were duplicated in the list after adding a new custom event for Drip.

### IMPORTANT
- Support for PHP 5.5 has been discontinued. If you are running PHP 5.5, you MUST upgrade PHP before installing the new WPForms Drip and WPForms 1.7.6 (that the addon is relying on). Failure to do that will disable the WPForms Drip plugin.
- Support for WordPress 5.1 has been discontinued. If you are running WordPress 5.1, you MUST upgrade WordPress before installing the new WPForms Drip. Failure to do that will disable the new WPForms Drip functionality.

### Fixed
- Compatibility with WPForms 1.7.3 and below.
- Compatibility with WordPress Multisite installations.

N/A Changelog