update version.txt to 2.4.0-dev
update version.txt to 2.4.0-dev

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