Title: #13: MEMBEROF: Don't resolve members if they are removed
I think all review requests were addressed, the code now looks good to me and just
reverting the non-code changes make the tests fail.
So I'm adding the Accepted label, just will wait a bit if others have some comments..
See the full comment at https://github.com/SSSD/sssd/pull/13#issuecomment-248556748