[[ Bug 14015 ]] urldecode and urlencode broken with Unicode characters
[[ Bug 14015 ]] Only use the URLs UTF-8 capability when asked for it (not at the script level)
Merge pull request #1478 from runrevsebastien/bugfix-14015

[[ Bug 14015 ]] urldecode and urlencode broken with Unicode characters (for internal, engine use only)