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…were never used and always introduced confusion about the zetamin argument that is effectively used for Earth Horizon event selection.
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The dir2pix() method used in GSkyMap::contains may throw an exception if the coordinate transformation fails. In this case we should signal that the sky direction is not contained in the map, hence we catch the exception and set the containment flag to false.
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The gammalib::xml_file_expand and gammalib::xml_file_reduce methods were modified to accomodate also for relative file paths in an XML file. Now the files towards which the XML file points can also reside in a subdirectory relative to the XML file.