Updated stout's `README`.
Updated stout's `README`.

Review: https://reviews.apache.org/r/54087/

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