Implement compatibility checks

[ubellavance]

Prevent the module from running if executed on an incompatible combination. At least for x86 arch.

• RHEL 7 + ZS 9 => Ok, run
• RHEL 6 + ZS 9 => Don't run, display an error

x86 (and x86-64 where applicable)

ZS 9.x -RHEL+derivatives: 7 -Debian: 8 -Ubuntu: 14.04 or 16.04

ZS 8.5 -RHEL+derivatives: 6 or 7 -Suse: SLES 11 OpenSUSE 12.x (this module doesn't support Suse distros) -Debian: 6 or 7 -Ubuntu: 12.04, 14.04, 14.10 or 15.04

[ZS 7.0]http://files.zend.com/help/Zend-Server-7/content/system_requirements.htm) -RHEL+derivatives: 5 (EOL) or 6 -Suse: SLES 11 OpenSUSE 12.x (this module doesn't support Suse distros) -Debian: 6 or 7 -Ubuntu: 12.04, 14.04