Adds an per-custom field criteria option to match an empty value.
Preforms a user promotion when:
Please create a Github Pull request via the "More information" link.
Preforms a user promotion when:
- A user updates their own profile (Routes under /account).
- When admin's edit a user's profile.
- When a user upgrade is being applied/removed
- Allows a Custom Field to match an empty rule ( )
- User promotion is rebuild when they update their profile.
Please create a Github Pull request via the "More information" link.
