ticket:104 fix some pointer problems with MussaAlignedWindow

ticket:104 fix some pointer problems with MussaAlignedWindow
the vector of MussaAlignedWindow * was having prolems with a double delete.
when a MussaAlignedWindow was open and one tried to load a different
analysis, the code that was closing all of the open windows crashed.

when I found boost::shared_ptr to fix it, I then found a problem
with the Qt trying to delete my shared zoom object which was also
causing a crash. This should have all of that fixed, and as a bonus
the new analysis doesn't have any of the old analysis' selections open.