Update SMO descriptions, site_name and locale

Related to #1513

 - Update descriptions
 - Update site_names
 - Update locale

Tests possible on http://smo.knowem.com/ using http://mf-geoadmin3.dev.bgdi.ch/ltpoa/ as url
Maybe we need to extent the charset specification so that it is `<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />` instead of just `<meta charset="utf-8"/>`?