Bump version to 4.0.0
Bump version to 4.0.0

bryanlo22/ckeditor,kartikluke/ckeditor,galetahub/ckeditor,jonahbron/ckeditor,Gennovacap-Technology/ckeditor,ajayaneja896/ckeditor,cookieshq/ckeditor,209cameronism/ckeditor-npp,ConXjobs/ckeditor,osdakira/ckeditor,kartikluke/ckeditor,sharpfuryz/ckeditor,tsipa88/ckeditor,qx/ckeditor,EndingChaung/ckeditor,EndingChaung/ckeditor,tsipa88/ckeditor,caiqinghua/ckeditor,DavidHHShao/ckeditor,artempartos/ckeditor,barbershoplabs/ckeditor,cookieshq/ckeditor,igorkasyanchuk/ckeditor,DavidHHShao/ckeditor,sr-education/ckeditor,glebtv/ckeditor,bryanlo22/ckeditor,3months/ckeditor,ccfiel/ckeditor,targettestprep/ckeditor_mathml,danhixon/ckeditor,sharpfuryz/ckeditor,lenamuit/ckeditor,mkaszubowski/ckeditor,myplaceonline/ckeditor,Fire-Dragon-DoL/ckeditor-moono-fix,die-antwort/ckeditor,shtzr840329/ckeditor,kelso/ckeditor,LaunchPadLab/ckeditor,3months/ckeditor,glebtv/ckeditor,AleksKaverin/ckeditor,artempartos/ckeditor,targettestprep/ckeditor_mathml,LaunchPadLab/ckeditor,bigkat73/ckeditor,strikingly/ckeditor,igorkasyanchuk/ckeditor,ConXjobs/ckeditor,die-antwort/ckeditor,idrozd/ckeditor,dailykos/ckeditor,tsipa88/ckeditor,galetahub/ckeditor,ccfiel/ckeditor,strikingly/ckeditor,bryanlo22/ckeditor,galetahub/ckeditor,209cameronism/ckeditor-npp,AleksKaverin/ckeditor,kelso/ckeditor,LaunchPadLab/ckeditor,targettestprep/ckeditor_mathml,209cameronism/ckeditor-npp,lovewitty/ckeditor,mkaszubowski/ckeditor,fab2605/ckeditor,gambala/ckeditor,sr-education/ckeditor,danhixon/ckeditor,moneyadviceservice/ckeditor,ShilpeshAgre/ckeditor,shtzr840329/ckeditor,AleksKaverin/ckeditor,lenamuit/ckeditor,die-antwort/ckeditor,ismailfaruqi/ckeditor-activeadmin,Gennovacap-Technology/ckeditor,artempartos/ckeditor,osdakira/ckeditor,Eepa/ckeditor,lovewitty/ckeditor,lenamuit/ckeditor,myplaceonline/ckeditor,glebtv/ckeditor,ShilpeshAgre/ckeditor,ConXjobs/ckeditor,Eepa/ckeditor,igorkasyanchuk/ckeditor,3months/ckeditor,qx/ckeditor,shtzr840329/ckeditor,fab2605/ckeditor,barbershoplabs/ckeditor,idrozd/ckeditor,bigkat73/ckeditor,kelso/ckeditor,mkaszubowski/ckeditor,ajayaneja896/ckeditor,Eepa/ckeditor,Fire-Dragon-DoL/ckeditor-moono-fix,cookieshq/ckeditor,Gennovacap-Technology/ckeditor,myplaceonline/ckeditor,ccfiel/ckeditor,kartikluke/ckeditor,osdakira/ckeditor,strikingly/ckeditor,barbershoplabs/ckeditor,danhixon/ckeditor,dailykos/ckeditor,gambala/ckeditor,sr-education/ckeditor,ajayaneja896/ckeditor,ShilpeshAgre/ckeditor,EndingChaung/ckeditor,caiqinghua/ckeditor,bigkat73/ckeditor,sharpfuryz/ckeditor,jonahbron/ckeditor,gambala/ckeditor,ismailfaruqi/ckeditor-activeadmin,dailykos/ckeditor,qx/ckeditor,caiqinghua/ckeditor,moneyadviceservice/ckeditor,lovewitty/ckeditor,DavidHHShao/ckeditor