Actually it would be good if @divdavem had a look and this file suggested what can be removed from here :)

The idea is to to totally get rid of beta.html / betaLauncher.js (and perhaps rename it) from CC stream and put it in GH, that will make it deploy to the usual place on maven build. 
By the way we can take some time to do the cleanup and remove long-unused stuff (stuff "unused for years but might be useful one day" should be removed IMO).