Allow action scripts to email to non-role

[mkpelletier]

It would be useful to be able to have action scripts email a specific user or static email address since those responsible for course development are usually enrolled at category or site level. The limitation on the email action script to just roles seems to create a barrier to practical use in some cases.

[timhunt]

I can see that would be useful in some cases. I suspect it just needs a new type of script action. If you can get someone to code it, I would be happy to include it.