[RHEL/6, RHEL/7, shared] Fix 'Uninstall httpd Package' rule & add shared version of remediation for it
[RHEL/6, RHEL/7, shared] Fix 'Uninstall dovecot Package' rule & add shared version of remediation for it
Merge pull request #330 from iankko/rhel6_rhel7_remediations_package_httpd_and_dovecot_removed

[RHEL/6, RHEL/7, shared] Fix 'Uninstall httpd & dovecot Package' rules & add (shared) remediations for them