changed link to opensearchdescription document to a absolute uri (in yacysearch.html and yacysearch.rss)

see http://www.opensearch.org/Specifications/OpenSearch/1.1/Draft_5#The_.22Description.22_element

htroot/yacysearch.html

@@ -4,7 +4,7 @@
   <title>#[former]# - YaCy '#[clientname]#': Search Page</title>
   #%env/templates/metas.template%#
   <link rel="alternate" type="application/rss+xml" title="Search for #[former]#" href="yacysearch.rss?query=#[former]#" />
-  <link rel="search" type="application/opensearchdescription+xml" title="YaCy Search on '#[clientname]#'" href="opensearchdescription.xml" /> 
+  <link rel="search" type="application/opensearchdescription+xml" title="YaCy Search on '#[clientname]#'" href="http://#[thisaddress]#/opensearchdescription.xml" /> 
   <link rel="stylesheet" type="text/css" media="screen" href="/env/highslide.css" />
   <script type="text/javascript" src="/js/ajax.js"></script>
   <script type="text/javascript" src="/js/xml.js"></script>

htroot/yacysearch.java

@@ -1063,9 +1063,10 @@ public class yacysearch {
             String hostName = header.get("Host", "localhost");
             if ( hostName.indexOf(':', 0) == -1 ) {
                 hostName += ":" + serverCore.getPortNr(env.getConfig("port", "8090"));
-            }
+            }           
             prop.put("searchBaseURL", "http://" + hostName + "/yacysearch.html");
             prop.put("rssYacyImageURL", "http://" + hostName + "/env/grafics/yacy.gif");
+            prop.put("thisaddress", hostName);
         }
 
         prop.put("searchagain", global ? "1" : "0");

htroot/yacysearch.rss

@@ -21,7 +21,7 @@
 		<opensearch:totalResults>#[num-results_totalcount]#</opensearch:totalResults>
 		<opensearch:startIndex>#[num-results_offset]#</opensearch:startIndex>
 		<opensearch:itemsPerPage>#[num-results_itemsPerPage]#</opensearch:itemsPerPage>
-		<atom:link rel="related" href="opensearchdescription.xml" type="application/opensearchdescription+xml"/>
+		<atom:link rel="search" href="http://#[thisaddress]#/opensearchdescription.xml" type="application/opensearchdescription+xml"/>
 		<opensearch:Query role="request" searchTerms="#[rss_queryenc]#" />
 #{results}#
 <!--#include virtual="yacysearchitem.xml?item=#[item]#&eventID=#[eventID]#" -->