This update fixes a performance issue that caused servers with a short timeout to complain about being non responsive for way too long.

Also, it is now possible to disable internet requests to specific heads databases.
By default this is configurated like this:

For now FreshCoal is disabled by default, because of the current problems with accessing that website. Once/if FreshCoal is up and running again, you can set the above config property back to true, to make calls to FreshCoal again.
Categories from FreshCoal that have been updated and cached before the website was down will continue to work, however they obviously won't be updated.