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The coding and design conventions (CDC) document was also updated.
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Delete statements have been added to the remove() method(s) so that the elements are properly deleted before the pointers are erased.
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The circle region parser has not check if a name really exists. This led to a core dump.
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The filename() method returns the file name from which information has been loaded or saved. A mutable m_filename member has been added for this that stores the file name in the GRegions class.