Decode slashes back after rawurlencode
add generating URIs section to the upgrade doc
Merge pull request #468 from enov/fix/4651/upgrade_docs_generating_uris

Fixex #4651 adds section to the upgrade docs about generating URIs
Merge pull request #467 from enov/refix/4079/Route_uri_encode_parameters

Refix #4079: Decode slashes back after rawurlencode