Added a missing call to delete on the RegistrarProcess.
Added a missing call to delete on the RegistrarProcess.

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