Updated CHANGELOG for 0.27 WIP.
Updated CHANGELOG for 0.27 WIP.

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