Fixes #3164: use /bin/rpm instead of /usr/bin/rpm

(cherry picked from commit b1b6ccfc67a96dd5e2a19ebf033950f93f1e1434)
Fixes #3159: prevent AVC denials related to passenger interaction with the puppet_*_t and a couple other domains

(cherry picked from commit b0837e98686f47c87ecd56ce101093170794547a)
Release 1.3.0-RC4