Updated CHANGELOG for 0.26.2, 0.27.3 and 0.28.2.
Updated CHANGELOG for 0.26.2, 0.27.3 and 0.28.2.

This is for the backported fix for MESOS-5449.

gsantovena/mesos,dforsyth/mesos,jpeach/mesos,jpeach/mesos,Gilbert88/mesos,asamerh4/mesos,asamerh4/mesos,craimbert/mesos,reneploetz/mesos,andschwa/mesos,neilconway/mesos,zmalik/mesos,dforsyth/mesos,craimbert/mesos,reneploetz/mesos,asamerh4/mesos,craimbert/mesos,verizonlabs/mesos,chhsia0/mesos,gsantovena/mesos,gsantovena/mesos,abudnik/mesos,chhsia0/mesos,andschwa/mesos,zmalik/mesos,kaysoky/mesos,dforsyth/mesos,reneploetz/mesos,andschwa/mesos,chhsia0/mesos,abudnik/mesos,dforsyth/mesos,chhsia0/mesos,zmalik/mesos,reneploetz/mesos,yuquanshan/customizedMesos,asamerh4/mesos,craimbert/mesos,gsantovena/mesos,neilconway/mesos,verizonlabs/mesos,Aman-Jain-14/customizedMesos,Aman-Jain-14/customizedMesos,neilconway/mesos,dforsyth/mesos,andschwa/mesos,jpeach/mesos,chhsia0/mesos,Aman-Jain-14/customizedMesos,craimbert/mesos,Gilbert88/mesos,kaysoky/mesos,andschwa/mesos,kaysoky/mesos,abudnik/mesos,Gilbert88/mesos,verizonlabs/mesos,gsantovena/mesos,gsantovena/mesos,reneploetz/mesos,verizonlabs/mesos,kaysoky/mesos,yuquanshan/customizedMesos,neilconway/mesos,kaysoky/mesos,neilconway/mesos,asamerh4/mesos,asamerh4/mesos,dforsyth/mesos,neilconway/mesos,jpeach/mesos,craimbert/mesos,chhsia0/mesos,verizonlabs/mesos,reneploetz/mesos,kaysoky/mesos,Gilbert88/mesos,asamerh4/mesos,jpeach/mesos,yuquanshan/customizedMesos,yuquanshan/customizedMesos,jpeach/mesos,neilconway/mesos,abudnik/mesos,andschwa/mesos,gsantovena/mesos,dforsyth/mesos,Gilbert88/mesos,zmalik/mesos,verizonlabs/mesos,Gilbert88/mesos,yuquanshan/customizedMesos,yuquanshan/customizedMesos,andschwa/mesos,craimbert/mesos,yuquanshan/customizedMesos,Aman-Jain-14/customizedMesos,Aman-Jain-14/customizedMesos,zmalik/mesos,chhsia0/mesos,verizonlabs/mesos,abudnik/mesos,zmalik/mesos,Aman-Jain-14/customizedMesos,abudnik/mesos,reneploetz/mesos,jpeach/mesos,abudnik/mesos,Gilbert88/mesos,kaysoky/mesos,Aman-Jain-14/customizedMesos,zmalik/mesos