docs: public int addScriptsFromDir (File dir) {
  		logger.debug("Adding scripts from dir: " + dir.getAbsolutePath());
  		trackedDirs.add(dir);
  		int addedScripts = 0;
  		for (ScriptType type : this.getScriptTypes()) {
  			addedScripts += addScriptsFromDir(dir, type, null);
  		}
  		return addedScripts;
  	}