0.4.2 Stable Release

Written for XorgParser by Alberto Milone on 2009-01-04

* xorgparser.py:
  - remove harmless but useless lines after an Exception in getValue()
  - make sure that if optiontype != None the option (differently from
    the value) is always put in quotation marks in addOption()
* 0-test.py:
  - add a test for the quotation marks check in addOption()