Those interested in this patch set please check lates changes. The test patch (1/3) has been slighty modified from Pieter's version and NEWS patch (3/3) is new. The actual functionality in patch 2/3 is exactly the same as in previous version. This applies cleanly in top of current master ( a5674c21584a32a4f8a8a3e9ea3c3576f772e744 ) pushed Sun 2012-02-12. Tomi