* [RU]LibGroup add auto image servers
* summary auto
* isServers != "auto"
* setDefaultValue("compress")
* change Timeouts
* url(url).head()
* val url(url).head()
* [RU]LibGroup add auto image servers
* summary auto
* isServers != "auto"
* setDefaultValue("compress")
* change Timeouts
* url(url).head()
* val url(url).head()