Fix components enabled config option when merging with defaults.
Fix components enabled config option when merging with defaults.

tenkoma/cakephp,cakephp/cakephp,CakeDC/cakephp,thinkingmedia/cakephp,mvdriel/cakephp,berrygoudswaard/cakephp,thinkingmedia/cakephp,CakeDC/cakephp,dakota/cakephp,berrygoudswaard/cakephp,ADmad/cakephp,thinkingmedia/cakephp,cakephp-fr/cakephp,garethellis36/cakephp,davidyell/cakephp,ndm2/cakephp,CakeDC/cakephp,ADmad/cakephp,berrygoudswaard/cakephp,garethellis36/cakephp,tenkoma/cakephp,cakephp/cakephp,dakota/cakephp,cakephp/cakephp,ndm2/cakephp,mvdriel/cakephp,tenkoma/cakephp,elboletaire/cakephp,garethellis36/cakephp,davidyell/cakephp,ADmad/cakephp,elboletaire/cakephp,dakota/cakephp,mvdriel/cakephp,petteyg/cakephp,cakephp-fr/cakephp,dakota/cakephp,mvdriel/cakephp,petteyg/cakephp,petteyg/cakephp,garethellis36/cakephp,ndm2/cakephp,cakephp/cakephp,petteyg/cakephp,ndm2/cakephp,CakeDC/cakephp,cakephp-fr/cakephp,elboletaire/cakephp,tenkoma/cakephp,davidyell/cakephp,ADmad/cakephp