Factorize duplicated code for packages download
Add missing Copyright to pre_build_hook shell script
Fix packages versions for MOS 10.0
Add extra packages and second repository for Xenial
Change-Id: I5360519d542ab5551c8d0951a722aa132e38da7c
This tests are performed:
* puppet-lint and puppet-syntax for manifests and plugin_zabbix module
* run spec test for plugin_zabbix module
The patch fixes puppet lint warnings in the same time
Change-Id: I060f59f724ec9325db8bc5f5718479ff42501686