Show extra debug output in Reorganize().
Show extra debug output in Reorganize().

In Reorganize(), show old, new and common fork point in the debug output
log information.

fsb4000/huntercoin,domob1812/huntercoin,chronokings/huntercoin,wiggi/huntercoin,chronokings/huntercoin,domob1812/huntercoin,fsb4000/huntercoin,chronokings/huntercoin,domob1812/huntercoin,fsb4000/huntercoin,fsb4000/huntercoin,wiggi/huntercoin,wiggi/huntercoin,wiggi/huntercoin,chronokings/huntercoin,domob1812/huntercoin