Add Hootsuite as a user of Mesos
Add Hootsuite as a user of Mesos

We're using Mesos 0.22.0, Marathon, Chronos, jenkins-mesos plugin

This closes: #64
Review: https://github.com/apache/mesos/pull/64

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