2.5 preparation status

[Thomas Jarosch]

Hi Bron,

I just noticed an important bugfix for ACL removal is still
sitting in the bug tracker untouched.

Please have a look at
https://bugzilla.cyrusimap.org/show_bug.cgi?id=3824

Without it the ACL strings get messed up in mailboxes.db
on current glibc versions. We run the patch for about a year
without any further ACL string defects.

Would be nice to see it applied to git master :)

Cheers,
Thomas