code: public boolean[] getBooleanArray(final String key, final boolean[] def) {
  		final boolean[] result = getBooleanArray(key);
  		return result == null ? def : result;
  	}
docs: Gets the prefixed key and parse it to an boolean[]<br>
  Each comma-separated list can be used. If the key couldn't get found, the
  default will be used.
  
  @param key
  the key
  @param def
  default value
  
  @return boolean[]