nodes are now ordered by a search rank

git-svn-id: file:///var/www/svn/anahita/anahita/branches/search@17029 a933e228-e664-4d3f-8241-49479697c698
moved the action browse to the searviceable behavior

git-svn-id: file:///var/www/svn/anahita/anahita/branches/search@17030 a933e228-e664-4d3f-8241-49479697c698