Various fixes to make 'fedora-review' happy.
    
    - Fix javadoc location to use _javadocdir macro.
    - Call ldconfig in java post and postun scripts.
    - Do not explicitly depend on perl-devel.
    - Compress the ChangeLog and *.xml files in devel package.
    - Create new subpackage gobject-doc for the huge HTML documentation.
    - Make javadoc, gobject-doc, bash-completion, man-pages-*, tools packages
      'noarch'.