changed opToolkit::loadXmlString() to decrease code duplications and to follow a part of PSR-2 (4.5. abstract, final, and static) (OPSA-2013-003) (refs #3384)
changed opToolkit::loadXmlString() to decrease code duplications and to follow a part of PSR-2 (4.5. abstract, final, and static) (OPSA-2013-003) (refs #3384)

C-nakajima/OpenPNE3,C-nakajima/OpenPNE3,ShinichiU/OpenPNE3,ShinichiU/OpenPNE3,isaosano/OpenPNE3,ShinichiU/OpenPNE3,isaosano/OpenPNE3,isaosano/OpenPNE3,kashiwasan/symfony-advanced,C-nakajima/OpenPNE3,C-nakajima/OpenPNE3,nishizoe/OpenPNE3,isaosano/OpenPNE3,nishizoe/OpenPNE3,ShinichiU/OpenPNE3,kashiwasan/symfony-advanced