[IMP] bring back the tests - backported from little after v7.0 in the trunk
[FIX] revert to v7 report API
 [IMP] bring back the tests for MRP - backported from little after v7.0 in the trunk
[FIX] changes made at merge time into the trunk - remove offending test
[FIX] revert to v7 report API
 [IMP] bring back the tests for mrp_operations - backported from little after v7.0 in the trunk
[MERGE] stock,mrp: restore deactivated tests (backport from trunk), courtesy of Lionel Sausin (Numerigraphe)