distro: add prevent_plymouth_starting().
hypervisor,lxc: add prevent_plymouth_starting() to configure_hypervisor().
Merge branch 'feature-lxc-configuration'
distro: configure_console -> configure_serial_console.
hypervisor: remove configure_serial_console in install_os().
hypervisor,lxc: add configure_serial_console() to configure_hypervisor().
Merge branch 'feathre-configure-console'
Merge pull request #10 from hansode/master

fix lxc