Sync puppetlabs-stdlib module to 4.2.1

v4.2.1 08b00d9229961d7b3c3cba997bfb35c8d47e4c4b

Change-Id: I12a3fa8eea5647d6410469b542317bff2bee896c
Implements: blueprint merge-openstack-puppet-modules
Remove stdlib::safe_package dependencies

- Sync libvirt.pp flatdhcp.pp vlan.pp with upstream
- Remove safe_package from server.pp to keep stdlib unmodified

Change-Id: I6d79d9a78d9805fcabf088e57b1072d98badbeb4
Implements: blueprint merge-openstack-puppet-modules
Sync puppet-nova

109d4825e5cdd15aa529c1ef7bcccc05f6a78178 4.0.0

Partial blueprint merge-openstack-puppet-modules

Change-Id: I672620f149e4a63240144f0ce20e84b084cfd459
Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com>