2006/285/EC: Commission Decision of 12 April 2006 amending Decision 2003/135/EC as regards the extension of plans for the eradication and emergency vaccination of feral pigs against classical swine fever to certain areas of North Rhine-Westfalia and Rhineland-Palatinate and the termination of these plans in other areas of Rhineland-Palatinate (Germany) (notified under document number C(2006) 1531)