fix mesos master and slave service's initial state in `source` installation.

build_from_source: master=>stop, slave=>stop
master: master=>start in `source`
slave: slave=>stop in `source`
fix mesos master and slave service's initial state in `mesosphere` installation.

mesosphere: master=>stop,  slave=>stop
master: master=>start in `mesosphere`
slave: slave=>stop in `mesosphere`

close #13
Merge pull request #13 from everpeace/fix/init_service_state

fix mesos master and slave services' initial state in upstart script.

when install:  master=>stop, slave=>stop
when configured master:  master => start
when configured slave:  slave => start