bug 1445641, bug 1464892: Add deployment recorder
bug 1445641, bug 1464892: Add deployment recorder

scripts/record_deployments.py takes the starting and ending commit
hashes, and calls the APIs for New Relic and SpeedCurve to record a
deployment.

It gets the API keys and IDs from the environment, to avoid printing
them on the command line when calling the scripts.

jwhitlock/kuma,Elchi3/kuma,mozilla/kuma,escattone/kuma,a2sheppy/kuma,escattone/kuma,mozilla/kuma,SphinxKnight/kuma,a2sheppy/kuma,SphinxKnight/kuma,a2sheppy/kuma,SphinxKnight/kuma,Elchi3/kuma,Elchi3/kuma,jwhitlock/kuma,a2sheppy/kuma,jwhitlock/kuma,jwhitlock/kuma,SphinxKnight/kuma,escattone/kuma,mozilla/kuma,mozilla/kuma,SphinxKnight/kuma,mozilla/kuma,a2sheppy/kuma,Elchi3/kuma,jwhitlock/kuma,SphinxKnight/kuma,Elchi3/kuma