Improve webdav; add workers for refreshes

pkg/proxy/proxy.go

@@ -88,7 +88,7 @@ func NewProxy() *Proxy {
 		username:   cfg.Username,
 		password:   cfg.Password,
 		cachedOnly: cfg.CachedOnly,
-		logger:     logger.NewLogger("proxy", cfg.LogLevel),
+		logger:     logger.NewLogger("proxy"),
 	}
 }