Don't create .urlwatch if not necessary

[kyrias]

I move the config, url list, hooks file, and cache to other directories because I don't like having my home directory cluttered with dotdirectories unnecessarily, (consider implementing the XDG basedir spec instead..,) but urlwatch insists on creating the .urlwatch directory even if it isn't actually used.

[thp]

Yes, that's a good idea. It should use XDG on freedesktop.org-like systems, ~/Library/Application Support/ on OS X and %APPDATA% on Windows, but for compatibility with existing installations use ~/.urlwatch/ if it exists and the new location does not exist (if both exist, it can use the new location). New installations will also use the new location.

[jwilk]

You might want to use appdirs to implement this.

[kyrias]

Normally I'd say to just implement it yourself, since it's a tiny amount of code, but I guess if you want to support Windows it gets a lot more annoying to have to deal with.