add ntp to nailgun

add resolv.conf and dhcp-enter-hook for nailgun

make ntp template for fuel master server

add ntp config template to openstack::clocksync

make ntp template for fuel master server
Merge pull request #733 from mattymo/nailgun-ntp

Nailgun NTP improvements
Define CPU mode none for virtual, host-model for HW cases

Fixes: #PRD-1950

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>
Fix isvirtual case only for checksum_bootpc as well

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>
Fix isvirtual flag for logging class

Use fact is_virtual to determine the $virtual value

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>
[PRD-2463] add debug string with node role
Add cciss device support for Ubuntu
Add support for older cciss devices

add detection for if devname is cciss and insert seperator if necessary
disable name resolving for ping command
Add API reconnect retry support
Merge pull request #844 from Mirantis/pick_missed_fixes_to_havana

Pick missed fixes to havana
PXE boot using HTTP instead of TFTP