Updated ZooKeeper support to allow a slave to start before the master.
Updated ZooKeeper support to allow a slave to start before the master.

git-svn-id: 03d7800a49d8905ef4fbcc296184319e19243493@1131631 13f79535-47bb-0310-9956-ffa450edef68

dforsyth/mesos,verizonlabs/mesos,wickman/mesos,samwhitlock/mesos-monitoring,gsantovena/mesos,gsantovena/mesos,neilconway/mesos,dforsyth/mesos,woggle/mesos-old,yuquanshan/customizedMesos,samwhitlock/mesos-monitoring,zmalik/mesos,woggle/mesos-old,samwhitlock/mesos-monitoring,Aman-Jain-14/customizedMesos,dforsyth/mesos,wickman/mesos,andschwa/mesos,abudnik/mesos,reneploetz/mesos,asamerh4/mesos,chhsia0/mesos,pwendell/mesos,jpeach/mesos,andschwa/mesos,charlescearl/VirtualMesos,reneploetz/mesos,chhsia0/mesos,charlescearl/VirtualMesos,craimbert/mesos,reneploetz/mesos,neilconway/mesos,kaysoky/mesos,charlescearl/VirtualMesos,asamerh4/mesos,craimbert/mesos,dforsyth/mesos,chhsia0/mesos,woggle/mesos-old,zmalik/mesos,charlescearl/VirtualMesos,andschwa/mesos,zmalik/mesos,yuquanshan/customizedMesos,enachb/mesos,charlescearl/VirtualMesos,pwendell/mesos,asamerh4/mesos,Gilbert88/mesos,neilconway/mesos,craimbert/mesos,Gilbert88/mesos,andschwa/mesos,asamerh4/mesos,woggle/mesos-old,dforsyth/mesos,enachb/mesos,jpeach/mesos,asamerh4/mesos,jpeach/mesos,Aman-Jain-14/customizedMesos,verizonlabs/mesos,Aman-Jain-14/customizedMesos,craimbert/mesos,reneploetz/mesos,pwendell/mesos,kaysoky/mesos,neilconway/mesos,yuquanshan/customizedMesos,gsantovena/mesos,chhsia0/mesos,zmalik/mesos,verizonlabs/mesos,andschwa/mesos,abudnik/mesos,kaysoky/mesos,craimbert/mesos,reneploetz/mesos,yuquanshan/customizedMesos,enachb/mesos,kaysoky/mesos,kaysoky/mesos,jpeach/mesos,zmalik/mesos,andschwa/mesos,reneploetz/mesos,dforsyth/mesos,neilconway/mesos,jpeach/mesos,yuquanshan/customizedMesos,enachb/mesos,abudnik/mesos,verizonlabs/mesos,pwendell/mesos,reneploetz/mesos,abudnik/mesos,samwhitlock/mesos-monitoring,pwendell/mesos,craimbert/mesos,yuquanshan/customizedMesos,woggle/mesos-old,gsantovena/mesos,charlescearl/VirtualMesos,enachb/mesos,yuquanshan/customizedMesos,pwendell/mesos,Gilbert88/mesos,zmalik/mesos,woggle/mesos-old,pwendell/mesos,chhsia0/mesos,gsantovena/mesos,pwendell/mesos,samwhitlock/mesos-monitoring,Aman-Jain-14/customizedMesos,enachb/mesos,craimbert/mesos,Gilbert88/mesos,zmalik/mesos,samwhitlock/mesos-monitoring,verizonlabs/mesos,asamerh4/mesos,Gilbert88/mesos,asamerh4/mesos,abudnik/mesos,abudnik/mesos,andschwa/mesos,neilconway/mesos,Aman-Jain-14/customizedMesos,woggle/mesos-old,jpeach/mesos,wickman/mesos,verizonlabs/mesos,charlescearl/VirtualMesos,charlescearl/VirtualMesos,abudnik/mesos,verizonlabs/mesos,pwendell/mesos,wickman/mesos,woggle/mesos-old,wickman/mesos,charlescearl/VirtualMesos,jpeach/mesos,Gilbert88/mesos,woggle/mesos-old,Aman-Jain-14/customizedMesos,enachb/mesos,gsantovena/mesos,chhsia0/mesos,dforsyth/mesos,chhsia0/mesos,Aman-Jain-14/customizedMesos,wickman/mesos,wickman/mesos,kaysoky/mesos,Gilbert88/mesos,neilconway/mesos,gsantovena/mesos,kaysoky/mesos