Adds openssh to the Dockerfile (required by git in some environments).
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5.0.17
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Deal with no previous releases being available.
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5.0.16
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When deploying services, weco-deploy prints a simpler summary of the changes. It also skips the ECS deployment if the ECR image tags for a service have not changed.
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5.0.15
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Make it easier to read the list of ECS services discovered when deploying new images.
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5.0.14
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Fix the printing of coloured tables in the weco-deploy output.
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5.0.13
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Fix bug deploying where images do not have a service