Added doc block comments for new Set::extract features
Added doc block comments for new Set::extract features

git-svn-id: 5860920b332e8b1c20d5ac1ddb0cfb1512ef151a@6673 3807eeeb-6ff5-0310-8944-8be069107fe0

nrother/cakephp,tgr0ss/cakephp,justinyost/cakephp,garethellis36/cakephp,tgr0ss/cakephp,kumamidori/cakephp,CakeDC/cakephp,khoimt/cakephp-study,tgr0ss/cakephp,adopico/cakephp,burriko/cakephp,jjj117/cakephp,timhoeppner/cakephp,berrygoudswaard/cakephp,petteyg/cakephp,cakephp/cakephp,cakephp-fr/cakephp,ndm2/cakephp,dakota/cakephp,michaelze/cakephp,mvdriel/cakephp,jeffblack360/cakephp,ionas/cakephp,ndm2/cakephp,petteyg/cakephp,Balachan27/cakephp,dkarvounaris/cakephp,pbaire/cakephp,mvdriel/cakephp,eryw/cakephp,jjj117/cakephp,tenkoma/cakephp,gmponos/cakephp,et304383/passbolt_api,et304383/passbolt_api,tisu2tisu/cakephp,Balachan27/cakephp,Phillaf/cakephp,burriko/cakephp,eboominathan/cakephp,mvdriel/cakephp,gmponos/cakephp,thinkingmedia/cakephp,CVO-Technologies/cakephp,dkarvounaris/cakephp,bravo-kernel/cakephp,tenkoma/cakephp,ionas/cakephp,nrother/cakephp,erikfig/cakephp,cakephp/cakephp,jeffblack360/cakephp,davidyell/cakephp,yinhe007/cakephp,cakephp/cakephp,khoimt/cakephp-study,yinhe007/cakephp,eryw/cakephp,nrother/cakephp,CakeDC/cakephp,timhoeppner/cakephp,HavokInspiration/cakephp,dakota/cakephp,yinhe007/cakephp,garethellis36/cakephp,HavokInspiration/cakephp,et304383/passbolt_api,ADmad/cakephp,CakeDC/cakephp,burriko/cakephp,davidyell/cakephp,eryw/cakephp,erikfig/cakephp,jerems02/cakephp,ADmad/cakephp,elboletaire/cakephp,bravo-kernel/cakephp,et304383/passbolt_api,mvdriel/cakephp,et304383/passbolt_api,web-player/cakephp,ndm2/cakephp,kumamidori/cakephp,akintoey/cakephp,tisu2tisu/cakephp,elboletaire/cakephp,jeffblack360/cakephp,pbaire/cakephp,elboletaire/cakephp,ionas/cakephp,web-player/cakephp,ADmad/cakephp,Phillaf/cakephp,garethellis36/cakephp,adopico/cakephp,CakeDC/cakephp,timhoeppner/cakephp,akintoey/cakephp,pbaire/cakephp,ndm2/cakephp,HavokInspiration/cakephp,davidyell/cakephp,jerems02/cakephp,khoimt/cakephp-study,thinkingmedia/cakephp,web-player/cakephp,garethellis36/cakephp,jjj117/cakephp,berrygoudswaard/cakephp,cakephp-fr/cakephp,adopico/cakephp,erikfig/cakephp,dakota/cakephp,michaelze/cakephp,cakephp/cakephp,tenkoma/cakephp,dkarvounaris/cakephp,petteyg/cakephp,berrygoudswaard/cakephp,thinkingmedia/cakephp,gmponos/cakephp,justinyost/cakephp,akintoey/cakephp,kumamidori/cakephp,tenkoma/cakephp,eboominathan/cakephp,eboominathan/cakephp,justinyost/cakephp,cakephp-fr/cakephp,dakota/cakephp,Phillaf/cakephp,CVO-Technologies/cakephp,CVO-Technologies/cakephp,Balachan27/cakephp,michaelze/cakephp,petteyg/cakephp,bravo-kernel/cakephp,ADmad/cakephp,tisu2tisu/cakephp,jerems02/cakephp