Correct docblock
Make sure we always return a string, even if the conditions are not met
Don't store the return value of wp_mail in an unused variable
Remove an unused variable
Correct @return in docblock
Set the @var to the class that the variable will contain an object of
Set abstract methods to public as they are expected to be implemented in child classes as public
Code formatting
s/de-register/unregister
Correct @return docblock param
Slight refactor, remove need for variable variables
Latest HM Backup
Use correct filename for Danish translation files