get rid of the 's' at the end of the title

The patch should also change the default text to include the "s" then. That would ensure that people who have not changed the defaults continue to get the exact same behavior.

Here's a patch that changes the defaults as well. It is probably worth noting that with this patch your title is whatever you type into the settings field, and will always be either pluralized or not. Not sure if this is really an issue or not, but it seems like there is potential to want it pluralized in some places and not others. Thoughts?

Revisiting this. The intent here is that if you're showing one user you're showing an "Activity Stream" but if you're showing all users, you're showing plural streams. I'm going to leave it as is unless someone can come up with a better way to handle the plural case.