Merge branch 'dns-dnssec' into 'stable-3.1'

Marius Burkard

2016-01-29 b8f4caccb73052b9d7488b592ed4854958a4dc76

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check process hhvm_{SYSTEM_USER} with pidfile /var/run/hhvm/hhvm_{SYSTEM_USER}.pid 
   start program = "/etc/init.d/hhvm_{SYSTEM_USER} restart" 
   stop  program = "/etc/init.d/hhvm_{SYSTEM_USER} stop"