Remove trunk/Manuals/Repository directory structure.
    
        - With this commit Spanish translations of Repository is also
          removed. I was using the same English structure to create two
          independent manuals, one in English and one in Spanish, using
          the same structure.
    
          From now on, we use the English manual only. Translation of
          English manual is planned to be done as follow: 
          
            1. makeinfo --docbook manual.texi (produces manual.xml)
            2. xml2po -o manual.pot manual.xml
            3. msgmerge manual.pot manual-${LANG}.po
            4. vi manual-${$LANG}.po
            5. xml2po -p manual-${LANG}.po -o manual-${LANG}.xml manual.xml
            6. docbook2pdf manual-${LANG}.xml
            7. docbook2html manual-${LANG}.xml
    
          Notice that makeinfo --docbook output, as in Texinfo 4.8, seems
          to be incomplete. So the translation process described above
          doesn't work presently as expected, but it will when makeinfo
          --docbook output be corrected.