Undid last 3 commits, see rest of the comment for the reason:

Undid last 3 commits, see rest of the comment for the reason:

I am not really comfortable with adding support to the conky-code
for sites that only work when you register, that's more something
for in a script.
But the biggest reason I undid the commits is that it is now
impossible to compile conky with support for weather if you don't
have the xml libs installed. Users used to be able to compile with
support for weather (using the other site) without xml2.
If you really want to include this other site in the conky code
then split WEATHER in WEATHERCOM and WEATHERNOAA (altough my personal
opinion is that weather.com should only be supported with scripts)