code: public int getInt(String propertyPath, int defaultValue) {
  		Object o = getValue(propertyPath, defaultValue);
  		return Integer.parseInt(o.toString());
  	}
docs: Get the int-value from the property path. If the property path does not
  exist, the default value is returned.
  
  @param propertyPath
  Example: foo.bar.key
  @param defaultValue
  is returned when the propertyPath does not exist
  @return the value for the given propertyPath