Allows you to define default notification methods for new users and new group members.

Also allows you to enable desired notification methods for all users. This is useful for example if you add a new notification method to your site, and you want all users to immediately have it enabled.

Features:

• Set default notification methods for new user account
• Set default notification methods for new group members
• Bulk enable notification methods for existing group memberships
• Bulk enable notification methods for personal notifications of existing user account TODO

Many of the features are still missing or broken, so I'm currently just looking for people who could test the plugin and provide bug reports and feedback.