* cgi: fixed one "Harmless?" warning by rebuilding street dependents
* brb.html-tpl: do not rely exclusively on <base>

  It seems that some proxy software (e.g. the one used at bund.de)
  does not handle <base> correctly, and gets the .css and .js links
  wrong, causing 404 errors. The workaround is to not use relative
  links here.
* data Makefile: new target osm-watch-lists
* data update