Add Let's Encrypt to integration playbook#6

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mfitzp wants to merge 7 commits intoopen-craft:integrationfrom

mfitzp:integration

Commits on Aug 11, 2015

Commits on Aug 12, 2015

migrate.sh defaults to named-release/cypress
singingwolfboy
committed

Commits on Aug 19, 2015

Add playbook for integration deployments - Shorter build time
antoviaque
committed

Commits on May 30, 2016

Fix "String ... is too long for username" error.
itsjeyd
committed

Commits on Jun 1, 2016

Merge pull request #5 from open-craft/integration-fix-ecommerce
itsjeyd
committed

Commits on Aug 22, 2016

Add Let's Encrypt to integration playbook
mfitzp
committed