[xwiki-devs] Should email invitation code be an application? How should it be put in sandbox?

I have a reasonably clean revision of the code for inviting friends to join the wiki. Should it be a separate application with it's own jira project? It's not very large but may grow. I can't imagine what other application it should be filed under. I'd like to put it in the sandbox so it can be subject to review and discussion but I don't know how that should be done. I guess that depends on whether it is going to be it's own application. Any thoughts? Caleb