Upgrade datadog puppet module to 1.9.0
Upgrade datadog puppet module to 1.9.0

Helps #591

tinnightcap/nubis-base,gozer/nubis-base,tinnightcap/nubis-base,Nubisproject/nubis-base,Nubisproject/nubis-base,tinnightcap/nubis-base,limed/nubis-base,gozer/nubis-base,limed/nubis-base,limed/nubis-base,gozer/nubis-base