chore: release 0.30.0

[callmehiphop]

🤖 I have created a release *beep* *boop*

0.30.0 (2019-06-17)

⚠ BREAKING CHANGES

• deps: use grpc-js instead of grpc extension (fix(deps)!: use grpc-js instead of grpc extension #658)
• subscription: decouple retainAckedMessages from messageRetentionDuration (fix(subscription)!: decouple retainAckedMessages from messageRetentionDuration #625)
• remove pullTimeout subscriber option (revert!: remove pullTimeout subscriber option #618)

Bug Fixes

• deps: update dependency @sindresorhus/is to ^0.17.0 (#591) (06fae6e)
• deps: update dependency grpc to v1.21.1 (#629) (fcf75a2)
• deps: update dependency p-defer to v3 (#650) (50f9d4e)
• deps: upgrade module extend to fix CVE-2018-16492 (#644) (cd54630)
• deps: use grpc-js instead of grpc extension (#658) (535a917)
• docs: move to new client docs URL (#657) (a9972ea)
• update regex to target correct comment (#646) (9e8f245)
• update rpc timeout settings (#628) (2a1a430)
• subscription: decouple retainAckedMessages from messageRetentionDuration (#625) (3431e7c)
• typescript: pin grpc to previous working version (#624) (2167536)

Features

• add .repo-metadata.json, start generating README.md (#636) (142f56c)
• support apiEndpoint override (#647) (b44f566)

Reverts

• remove pullTimeout subscriber option (#618) (4fc9724)

[codecov]

Codecov Report

Merging #660 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #660   +/-   ##
=======================================
  Coverage   97.79%   97.79%           
=======================================
  Files          14       14           
  Lines         861      861           
  Branches      179      179           
=======================================
  Hits          842      842           
  Misses          2        2           
  Partials       17       17

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[yoshi-automation]

Release is at https://github.com/googleapis/nodejs-pubsub/releases/tag/v0.30.0

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The release build has started, the log can be viewed here. 🌻

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