* Bug: In Katabatic, in AutoContactTurn::cacheAttach() unset the
"cache invalidated" flag *only* if the h1 & v1 component are
sets. This is needed because we can attach *before* the first
cache revalidation (in the initial building stage).
* Bug: In Katabatic, in AutoSegment::getPPitch() out of bound access
of the top of the RoutingGauge, in case of a top layer segment
with a spin top flag (maybe this shouldn't happen?).
* Change: In Kite, in SegmentFsm::conflictSolveByPlaceds() take
account as conflicting other global, global, blockage *and*
now fixeds.
* Change: In Cumulus, in px2mpx.py more accurate way of transforming
the pad blockages.
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