Bug fix. A scheduler might failover but the original scheduler might try and unregister.
Bug fix. A scheduler might failover but the original scheduler might try and unregister.

git-svn-id: 03d7800a49d8905ef4fbcc296184319e19243493@1131858 13f79535-47bb-0310-9956-ffa450edef68

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