Update trunk/Locales/Manual directory structure:
    
        - Remove Manual/es_ES which contain the Spanish translations for
          repository.xml file. It was just a test an no translation effort
          is there. Presently, I don't see a way to convert the XML file
          produced by Texinfo to other formats like Info, Pdf, or XHTML.
          So, start using XHTML as main source of tests for translations;
          even it is no possible to take advantage from XHTML translation
          efforts from text terminals, yet.
    
        - Add Manual/repository.xhtml/ which contain the first steps in
          Spanish translations for XHTML output files of repository
          documentation manual.