Sites collection added to person rest API, check point of tagging rest API

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@10025 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/site/SiteService.java

@@ -37,6 +37,14 @@ public interface SiteService
      */
     List<SiteInfo> listSites(String nameFilter, String sitePresetFilter);
     
+    /**
+     * List all the sites that the specified user has a explicit membership to.
+     *
+     * @param userName          user name
+     * @return List<SiteInfo>   list of site information
+     */
+    List<SiteInfo> listSites(String userName);
+    
     /**
      * Gets site information based on the short name of a site.
      * <p>