Change-Id: If96f95fdab13eae187a843f81b0d0060339a5f98

- Disable sudo for kitchen tests
 - No update grub on docker/lxc
 - Avoid changing hostname in docker based tests

Change-Id: Ic93ecc4680fb9a44388f494259de28ea9e8a0fc0

- enable topics on test pillar
- add integration test for sudo enabled groups
- use loop devices only for storage suite
- example inspec test for sudo state