Add integration tests for --version and --help.
Add integration tests for --version and --help.

Refs #8894

petteyg/cakephp,garethellis36/cakephp,ADmad/cakephp,elboletaire/cakephp,CVO-Technologies/cakephp,ionas/cakephp,cakephp-fr/cakephp,dakota/cakephp,tgr0ss/cakephp,ndm2/cakephp,mvdriel/cakephp,CVO-Technologies/cakephp,thinkingmedia/cakephp,mvdriel/cakephp,ndm2/cakephp,cakephp-fr/cakephp,cakephp/cakephp,ADmad/cakephp,jeffblack360/cakephp,ionas/cakephp,HavokInspiration/cakephp,HavokInspiration/cakephp,CakeDC/cakephp,thinkingmedia/cakephp,elboletaire/cakephp,ionas/cakephp,ndm2/cakephp,jeffblack360/cakephp,nrother/cakephp,ndm2/cakephp,davidyell/cakephp,tenkoma/cakephp,HavokInspiration/cakephp,CVO-Technologies/cakephp,ADmad/cakephp,berrygoudswaard/cakephp,elboletaire/cakephp,garethellis36/cakephp,mvdriel/cakephp,dakota/cakephp,tenkoma/cakephp,petteyg/cakephp,garethellis36/cakephp,petteyg/cakephp,dakota/cakephp,cakephp/cakephp,davidyell/cakephp,tgr0ss/cakephp,CakeDC/cakephp,garethellis36/cakephp,tgr0ss/cakephp,davidyell/cakephp,petteyg/cakephp,berrygoudswaard/cakephp,mvdriel/cakephp,nrother/cakephp,thinkingmedia/cakephp,cakephp/cakephp,cakephp-fr/cakephp,nrother/cakephp,tenkoma/cakephp,ADmad/cakephp,tenkoma/cakephp,berrygoudswaard/cakephp,CakeDC/cakephp,cakephp/cakephp,CakeDC/cakephp,jeffblack360/cakephp,dakota/cakephp