Make alt text and title configurable

[nicodv]

Nice little package, thanks for your work!

Right now alt text and title are hardcoded in Avatar, but since the avatars could be used for other purposes than just users, it would be nice to have these configurable.

[Exelord]

Thanks a lot! I totally agree. And from what I see you should be able to do it, eg:

{{ember-initials alt="My alt}}

[nicodv]

Oh, that seems to work indeed. My bad.

Thanks again!