Add contributed SaltStack deployment

[miketheman]

https://gist.github.com/mastrolinux/6175280

From Cloud9

[MisterRayCo]

@miketheman should this live, linked as is, from the library page?

[miketheman]

For now, sure. At some point, we should probably validate/improve on it, but this is a decent start.

[MisterRayCo]

cc @alq666 - I want to add the following to our libraries page:

For Saltstack, should I use the one linked above or: https://github.com/DataDog/datadog-formula

Ansible: https://gist.github.com/alekstorm/6350729

Freeswitch socket connections: https://datadog.desk.com/agent/case/7788 and https://github.com/wimactel/FreeSwitch-DataDog-Metrics

Google Analytics: https://github.com/adamdunkley/casperjs-google-analytics-realtime-scrape

Reverse color schemes: http://stylebot.me/styles/4320

Generate process information for statsd, given pid files. - https://github.com/gitterHQ/pid-stats

logstash: https://gist.github.com/conorbranagan/c001078d148d2cab38a0

---i think we now have official integrations for these two:
apache mesos: DataDog/dd-agent#919
node - https://github.com/AppPress/node-connect-datadog