Update centos-master-installer.sh
Update centos-master-installer.sh

We're not debian. We don't have aptitude available in our toolkit.
Feathur/Feathur,zvenzzon/Feathur,timnboys/Feathur,zvenzzon/Feathur,timnboys/Feathur,Feathur/Feathur,SDenny/Feathur,SDenny/Feathur,timnboys/Feathur,timnboys/Feathur,Feathur/Feathur,SDenny/Feathur,timnboys/Feathur,SDenny/Feathur,Feathur/Feathur,Feathur/Feathur,zvenzzon/Feathur,zvenzzon/Feathur,zvenzzon/Feathur