[trunk] Unconditional abort() in Segment destructor terminates the app when a score is closed

[Miwarre]

Hi,

Since rev. 4821, an unconditional "abort()" statement has been added at the beginning of the Segment destructor (file <code>libmscore/segment.cpp</code>, line 170). This leads to program termination each time a segment is destructed, including each time an open score is closed.

This seems a left-over of some debugging. Commenting out this statement does not seems to raise any visible problem (and of course avoids this premature app termination!).

Thanks,

M.