Merge pull request Azure#991 from jnoller/master

Release notes for May 20th, 2019 AD, first of it's name, mother of changelogs

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Merge pull request Azure#977 from jnoller/master

2019-05-13 Release Notes

Merge pull request Azure#960 from jnoller/05062019

Network Policies GA 🍰 

Merge pull request Azure#960 from jnoller/05062019

Network Policies GA 🍰 

Merge pull request Azure#956 from jnoller/05062019

2019-05-06 Release "Operation previews thunder"

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Merge pull request Azure#926 from jnoller/master

4-15 release notes

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Merge pull request Azure#907 from jnoller/master

Arm hotfix