Update locale functionality of centos-art.sh script:
    
     - Move cli_expandTMarkers from locale_updateMessageMetadata to
       locale_updateMessageXmlDocbookWithEntities function. This fixes the
       problem of duplicated messages id inside PO files. We cannot expand
       translation markers after PO creation because things like these
       happen. Instead, expand translation markers in the instance you use
       to create the PO file. This way no duplicate messages will be
       created because expanded or non-expanded translation markers issue.