maven.vaadin.com down, stopping build

I’m not sure the correct channel for reporting this. I think there is something wrong with the maven.vaadin.com server.

I get an HTTP 502 error with

wget http://maven.vaadin.com/vaadin-addons/com/vaadin/external/gwt/gwt/2.7.0.vaadin4/gwt-2.7.0.vaadin4.pom

Which is stopping my build.