Fixes

* Fixes in docs
* Fix fence policy evaluation in site.pp
* Fix yaml parsing in site.pp
* Add missing parser functions and facts
* Del inifile copy from pre-build-hooks
* Add pre-build hook for puppetlabs/stdlib v 4.5.0 dependency

Change-Id: Iaa764ee40dd6fd41cafe72bcaefb9b9bf9b06f94
Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com>