Updates have been sparse this summer! I guess some of that reflects the work I've been doing, a little less glamorously front-endy and sometimes more proprietary.
One project is using JBoss, which by nature is a bit less free-and-easy than the "here's the exploded war, just go edit the content!" defaults of Tomcat/Apache. I had a front end to deploy on it that was strictly static content.
The easiest way to make a .war for static content seems to be to have your static html etc in a directory, include an empty "WEB-INF" directory in that, and then (assuming "webclient" is both the name for the output file .war and the folder itself) from the directory above do:
jar cvf webclient.war -C webclient/ .
I guess there may well be ways of getting JBoss to let you edit static content in place, but I didn't research them yet.