Default to now unless the notification contains it's own timestamp.
Insert NULL value if the value is not set for Amount/Currency in
notification.
Add an iframe in the settings page with information about Trustly.
Defend against the most common error at least.
Add ability to generate RSA keys from the backend.
Do not show option of creating keys unless we have a PHP version that
can do it.
Whitespace cleanup
Use the more appropriate form of if statement for the block