Provided styling for 403 forbidden pages.

git-svn-id: https://gbif-portal.googlecode.com/svn/portal-drupal7/trunk@2953 3650c4fd-ea0f-e2d6-5ead-89630c913e81
POR-2192 account link doesn't go to %user/edit page. Updated user-menu though it's not used for now.

git-svn-id: https://gbif-portal.googlecode.com/svn/portal-drupal7/trunk@2954 3650c4fd-ea0f-e2d6-5ead-89630c913e81