refactor execscripts.
02_openvswitch.sh -> 50_openvswitch.sh
split 01_wakame-vdc.sh to *_wakaem-vdc-*.sh.
03_wakame-vdc-hva.sh -> 03_wakame-vdc-hva-openvz.sh
split 50_openvswitch.sh to 50_openvswitch-openvz.sh and 51_openvswitch-service.sh.
split 51_openvswitch-service.sh to 51_openvswitch-service-netfilter.sh 51_openvswitch-service-openflow.sh
refactor case statement.
ASHIBA_ENV -> VDC_EDGE_NETWORKING.
add VDC_HYPERVISOR parameter.
add VDC_HYPERVISOR parameter.
add kvm and lxc to VDC_HYPERVISOR.
update vmimage file name.
add VDC_HYPERVISOR to SETUP.
remove arch command dependency.
move kmod-openvswitch-vzkernel installation to 03_wakame-vdc-hva-openvz.sh.
readd wakame-vdc-example-1box-dcmgr-vmapp-config.
split guestroot/ to guestroot.${VDC_EDGE_NETWORKING}/.
split scripts to each roles.
add guestroot.${VDC_HYPERVISOR}/.
add guestroot.${VDC_HYPERVISOR}/var/lib/wakame-vdc/demo/vdc-manage.d/01_core.