3 features request

[RaVaeL]

1.select forum language - as you might know,many of ipb customers has sub forums for different languages and right now we are only able to choose forum skin but not the language that will be used on that specific forum.

2.group administrator - allow specific user to manage a group without having permissions to acp or mod cp - adding,deleting members from his group.
I believe it can help a lot to forum managing as having permissions would be much better then protecting forum with passwords.

3.Limit amount of members in a specific group