CanIt 3.4 Released

MAJOR NEW FEATURE: The old "Access Rights" page is gone. In its place are far more flexible "Permissions" pages. These allow fine-grained control over permissions on a per-user and per-group basis.
MAJOR IMPROVEMENT (CanIt-PRO and Domain-PRO only): Hit-and-Run (also known as "Greylisting") can be enabled on a per-stream basis.
MAJOR CHANGE (CanIt-PRO and Domain-PRO only): The old "Stream Redirection" concept is gone. In its place we have "Stream Inheritance". This is more flexible and simplifies the code a lot.
PERFORMANCE IMPROVEMENT: A new caching scheme has reduced the number of database queries per e-mail substantially, sometimes by more than 50%.