Node Platform - Remove ruby version of oo-trap-user
Bug 1081249 - Refactor SELinux module to be SelinuxContext singleton

* Old usage of libselinux caused segfaults, when one thread would
    initialize the library but another would cause a free.
Bug 1081249 - Fix up code after reviews

* Correct comments and formatting error for octal literal
Merge pull request #5153 from jwhonce/bug/1081249

Merged by openshift-bot