Use voxpupuli testing gems to fix unit and acceptance tests
Drop Debian 7, 8, 9 support
Drop EL 5 and 6 support
Remove EOL CentOS support so only CentOS 7 supported
Drop SLES 9, 10, 11 support
Drop SLED 9, 10, 11 support
Drop Ubuntu 12.04, 14.04, 16.04 and 18.04 support
Use voxpupuli testing gems to fix unit and acceptance tests Drop Debian 7, 8, 9 support Drop EL 5 and 6 support Remove EOL CentOS support so only CentOS 7 supported Drop SLES 9, 10, 11 support Drop SLED 9, 10, 11 support Drop Ubuntu 12.04, 14.04, 16.04 and 18.04 support