Tests should run against more linux versions

[terciodemelo]

The list belows marks which linux versions are being tested against, the unchecked ones must be setup in test environment:

• Ubuntu 14.04
• Ubuntu 16.04
• Ubuntu 16.10
• Ubuntu 17.04
• Centos 5
• Centos 5.11
• Centos 6
• Centos 6.6
• Centos 6.7
• Centos 6.8
• Centos 7
• Centos 7.1
• Centos 7.2
• Centos 7.3
• SUSE 11
• SUSE 12
• All Linux AMI Systems from EC2