The policycoreutils python API for RHEL6 and RHEL7 are sufficiently
different, requiring some additional definitions and specific conversion
that works on old and new implementations.
It also implements a fix for non-ascii error messages (like when using a
French locale configuration).
This fixes#3551.
New SELinux module sefcontext to set SELinux file context mappings
This module implements `semanage fcontext` in an idempotent way.
It supports check-mode and diff-mode.
