GUI: enable using QWebView WebKit browser instead of Qt native QTextBrowser to display the result list. On by default, can be disabled with configure --disable-webkit

src/query/reslistpager.cpp

@@ -279,6 +279,7 @@ void ResListPager::displayPage(RclConfig *config)
     chunk << "<html><head>" << endl
 	  << "<meta http-equiv=\"content-type\""
 	  << " content=\"text/html; charset=utf-8\">" << endl
+	  << headerContent()
 	  << "</head><body>" << endl
 	  << pageTop()
 	  << "<p><font size=+1><b>"

src/query/reslistpager.h

@@ -110,6 +110,7 @@ public:
     virtual string nextUrl();
     virtual string prevUrl();
     virtual string pageTop() {return string();}
+    virtual string headerContent() {return string();}
     virtual string iconUrl(RclConfig *, Rcl::Doc& doc);
     virtual void suggest(const vector<string>, 
 			 map<string, vector<string> >& sugg) {