CKAN 2.5.8

Note: This version requires a database upgrade

• Fix language switcher
• Activity Time stored in UTC (#2882)
• Migration script to adjust current activity timestamps to UTC
• Change CORS header keys and values to string instead of unicode (#3855)
• Fix cors header when all origins are allowed (#3898)
• Create datastore indexes only if they are not exist
• Use javascript content-type for jsonp responses (#4022)
• Fix SOLR index delete_package implementation
• Add second half of DataStore set-permissions command(Docs)
• Update SOLR client (pysolr -> solrpy)
• Return a 403 if not authorized on the search page (#4081)
• Add support for user/pass for Solr as ENV var
• Disallow solr local parameters
• Improve text view rendering
• Update Orgs/Groups logic for custom fields delete and update (#4094)