o[Enhancement] shared directory python scripts for templatates in Makefiles

- Update Makefiles
- Remove python scripts from content template directories and move to shared
- Fixes #244
Merge pull request #288 from redhatrises/makefile_shared_updates

[Enhancement] shared directory python scripts for templatates in Makefiles
[RHEL/6] Fix OOM killer termination of oscap probe_file process due to excessive
         memory use. See e.g: https://www.redhat.com/archives/open-scap-list/2014-May/msg00005.html
         or https://github.com/OpenSCAP/scap-security-guide/commit/2eeeca75499f69adeb74f63e9f667c2460ae2435
Merge pull request #297 from iankko/rhel6_fix_oscap_file_probe_oom_killer_termination

[bugfix] [RHEL/6] Fix OOM killer termination of oscap probe_file process due to excessive memory use when evaluating file_permissions_ungroupowned rule