bug fix: correctly set lp status in strong branching when the lp value is more than the best upper bound.
bug fix: correctly set lp status in strong branching when the lp value is more
than the best upper bound.

guptashail/SYMPHONY,tkralphs/SYMPHONY,guptashail/SYMPHONY,guptashail/SYMPHONY,tkralphs/SYMPHONY,guptashail/SYMPHONY,tkralphs/SYMPHONY,guptashail/SYMPHONY,tkralphs/SYMPHONY,tkralphs/SYMPHONY