mik
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Move XML utility functions from child classes into Mods.php
getChildNodesFromModsXMLString(), determineRepeatedWrapperChildElements(), consolidateWrapperElements(), oneParentWrapperElement(), and possibly applyMetadatamanipulators() are duplicated within CdmToMods.php and the new CsvToMods.php metadata parser. Is there any reason these functions can't live within the parent Mods.php class?
Related is #365 and #25.