fix CLEANALLRUV and winsync - consumer update race condition - mem frag debugging
Ticket 450 - CLEANALLRUV task gets stuck on winsync replication agreement
Ticket 386 - large memory growth with ldapmodify(heap fragmentation)
this patch doesn't fix the bug - it allows us to experiment with
different values of mxfast
Ticket #374 - consumer can go into total update mode for no reason
(cherry picked from commit 0b44dc6de93d6807c1ae4c965138794c37a4e601)
(cherry picked from commit 8e2cb310bbeee12cfc21ea8a1c3d5233cbfd8431)