code: public String get(String key, String defaultValue) {
  		addToDefaults(key, defaultValue);
  		String value = get(key);
  		if (value == null) {
  			return defaultValue;
  		} else {
  			return value;
  		}
  	}
docs: Returns the String value for the given key.
  If the key does not exist it will return the given default value.