Revert "Revert "MOTM-1068: Enables subscriber checkbox for newsletter and sets initial frequence to daily""

This reverts commit e8eb1bcbbafa2dc2bd5f8fa7bc4e594efdc62a6f.
Revert "Revert "MOTM-1068: Fixes typos and missing array statment""

This reverts commit 5bf68d3f87d661faf782975c38ce860d735f66fa.
Merge pull request #924 from m038/zplus

MOTM-1068: Checks checkbox on registration page