[trafficserver/el6] Create /var/run/trafficserver using tmpfiles.d on f15+, since /var/run is no tmpfs there and needs t

[Jan-Frode Myklebust]

Summary of changes:

  8b7e02f... Create /var/run/trafficserver using tmpfiles.d on f15+, sin (*)

(*) This commit already existed in another branch; no separate mail sent