Release 1.3.0

[markmandel]

Had to make a small change to the App Engine site deploy because of a change in behaviour with Docker/Bash

[google-oss-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: markmandel, pooneh-m

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• OWNERS [markmandel,pooneh-m]

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[agones-bot]

Build Failed 😱

Build Id: a3e0a851-ca0f-4c13-938a-8190055769bd

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[agones-bot]

Build Succeeded 👏

Build Id: 388d1f15-3670-4d97-b16c-18a6180b4749

The following development artifacts have been built, and will exist for the next 30 days:

• image: gcr.io/agones-images/agones-controller:1.3.0-88dbead
• image: gcr.io/agones-images/agones-sdk:1.3.0-88dbead
• image: gcr.io/agones-images/agones-ping:1.3.0-88dbead
• Linux C++ SDK (build): agonessdk-1.3.0-88dbead-linux-arch_64.tar.gz
• SDK Server: agonessdk-server-1.3.0-88dbead.zip

A preview of the website (the last 30 builds are retained):

• https://88dbead-dot-preview-dot-agones-images.appspot.com/

To install this version:

• git fetch https://github.com/GoogleCloudPlatform/agones.git pull/1289/head:pr_1289 && git checkout pr_1289
• helm install ./install/helm/agones --namespace agones-system --name agones --set agones.image.tag=1.3.0-88dbead