[RHEL/6] Modify RHEL-6 remediation fixes for service enabled / disabled
         rules to use full path when referring to 'chkconfig' &
         'service' commands instead of just basenames to prevent remediation
         script errors. Fixes issue #313.
Merge pull request #314 from iankko/rhel6_use_full_path_for_chkconfig_and_service_commands

[RHEL/6] Use full path for 'chkconfig' & 'service' commands in RHEL-6 service related remediation scripts