Infrastructure agent v1.14.2

Notes

A new version of the agent has been released. Follow standard procedures to update the Infrastructure agent.
New Relic recommends that you upgrade the agent regularly and at a minimum every 3 months.

Changed

• #274 nri-flex updated to v1.3.8.
• #272 Drop comments from config files. Env-vars expansion won't take place when those are commented out.