This patch adds Sitemaps to the XMLUI for DSpace 1.5.x. It's based on the
Sitemap code for the DSpace 1.5.x JSPUI.

Essentially, it just adds a "SitemapReader" class which can read the
sitemaps generated by running the script:
[dspace]/bin/generate-sitemaps.

Attached are two patches:

(1) dspace-xmlui-webapp-sitemap.patch

Patch for sitemap.xmap in DSpace XMLUI Webapp located in
[dspace-src]/dspace-xmlui/dspace-xmlui-webapp/src/main/webapp/sitemap.xmap

(2) dspace-xmlui-api.patch

This patch just adds the org.dspace.app.xmlui.cocoon.SitemapReader class to
the XMLUI API.

These patches were made based on the lastest SVN dspace-1.5.x branch. They
will be committed to that branch shortly.

After these patches are applied the sitemaps are available at:

http://localhost/xmlui/sitemap (Sitemaps.org sitemap)
http://localhost/xmlui/htmlmap (HTML sitemap)