Strange, isn't it....
+ Making sure we clear UnincCredit... result looks worse.
+26th February 2009
+ I fixed up the credit accounting 'incorporate' and then fixed a couple
+ more little bugs. And now:
+
+
+
+====================48 credits ==============================
+df: tot=4608 free=4597 avail=3172(3940-768) cb=10 pb=0 ab=1
+
+So we still have 720 allocated credits that aren't accounted for.
+But we are nicely under 100...
+
+.... and now
+
+
+====================76 credits ==============================
+df: tot=4608 free=4256 avail=2160(2402-242) cb=350 pb=0 ab=2
+
+That is different. The count of missing blocks is way down,
+but there is some extra cruft in the index tree.
+Quite a few like
+ 0 DATA (1) 303 [0]L Leaf1(13) SegRef,Claimed,PhysValid
+ 0 DATA (1) 302 [0]L Leaf1(14) SegRef,Claimed,PhysValid
+and even one
+ 0 DATA (2) 330 [0]L Leaf1(1) SegRef,C,CI,Claimed,PhysValid
+ 330 1 (1) 0 [0]{0,00000000} [0, 0]L Leaf1(0) Index(1),Pinned,Phase1,InoIdx,SegRef,C,CI,CN,CNI,PhysValid,Prealloc
+Time for a commit though....