EL SELinux check

[arm4b]

Try to adjust SELinux policies automatically (?) OR warn user & stop the execution, according to doc instructions: https://docs.stackstorm.com/install/rhel7.html#adjust-selinux-policies

[shortdudey123]

This is pretty easy, i can work on it

[arm4b]

:+1: Just FYI it's a good thing to have, but not a big priority or something like that.

Stating the obvious :)