Added test case for addClass()
Added test case for addClass()

dakota/cakephp,garethellis36/cakephp,ndm2/cakephp,CakeDC/cakephp,dakota/cakephp,mvdriel/cakephp,tenkoma/cakephp,garethellis36/cakephp,davidyell/cakephp,ADmad/cakephp,davidyell/cakephp,tenkoma/cakephp,mvdriel/cakephp,tenkoma/cakephp,ndm2/cakephp,petteyg/cakephp,davidyell/cakephp,petteyg/cakephp,cakephp/cakephp,cakephp/cakephp,ndm2/cakephp,tenkoma/cakephp,cakephp/cakephp,garethellis36/cakephp,petteyg/cakephp,CakeDC/cakephp,mvdriel/cakephp,CakeDC/cakephp,CakeDC/cakephp,ADmad/cakephp,cakephp/cakephp,dakota/cakephp,ADmad/cakephp,ADmad/cakephp,dakota/cakephp,ndm2/cakephp,garethellis36/cakephp,petteyg/cakephp,mvdriel/cakephp