surfraw-update-path: fix csh syntax.
switched to weather.com, as yahoo now uses AJAX. Command line options and
    SURFRAW_weather_* variables no longer supported.
fixed, original site is back.
fixed search URL and test. Method now defaults to 'auto'.
fixed URLs.
fixed test.
removed, use sunonesearch.
removed, use arxiv.
prefer decoded_content if available. Debian:
3.8.0 (no changes).
Remove linda override.