When run as a Mesos framework, inject MESOS_URL environ variable into job runtime.
When run as a Mesos framework, inject MESOS_URL environ variable into job runtime.

Should allow actual jobs to utlize the Apache Mesos framework if they wish (as outlined by @kellrott in http://dev.list.galaxyproject.org/Using-Mesos-to-Enable-distributed-computing-under-Galaxy-tp4662310.html).

natefoo/pulsar,jmchilton/pulsar,ssorgatem/pulsar,jmchilton/lwr,natefoo/pulsar,jmchilton/pulsar,ssorgatem/pulsar,jmchilton/lwr,galaxyproject/pulsar,galaxyproject/pulsar