From Paul Russo:

     o (Destructor) It is no longer necessary to check for directory
       destructor in progress anymore.  Deleted pointers are set to zero.

     o Make sure stack variables are intialized before use in
       various member functions.

     o (CloneTree) Make sure the clone does not own any objects
       allocated by SetAddress().

     o (CopyAddresses) Use SetupAddresses() now instead of GetEntry().

     o (Fill) Avoid corrupting byte count on i/o error.


git-svn-id: http://root.cern.ch/svn/root/trunk@15791 27541ba8-7e3a-0410-8455-c3a389f83636