chore: release 2.0.0

[yoshi-automation]

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

2.0.0 (2019-05-18)

Bug Fixes

• deps: update dependency @google-cloud/common-grpc to v1 (#478) (40197e4)
• deps: update dependency @google-cloud/paginator to ^0.2.0 (a25627c), closes #8203
• deps: update dependency @google-cloud/paginator to v1 (#468) (ae06ec2)
• deps: update dependency @google-cloud/projectify to v1 (#466) (6c6dd40)
• deps: update dependency @google-cloud/promisify to ^0.4.0 (#420) (d5c2862)
• deps: update dependency @google-cloud/promisify to v1 (#467) (5473fb9)
• deps: update dependency arrify to v2 (e29f9aa)
• deps: update dependency dot-prop to v5 (#455) (3949356)
• deps: update dependency escape-string-regexp to v2 (#457) (d923b58)
• deps: update dependency google-auth-library to v4 (#475) (a58547c)
• deps: update dependency google-gax to ^0.26.0 (#461) (4462869)
• DEADLINE_EXCEEDED is no longer retried (c1190d3)
• DEADLINE_EXCEEDED retry code is idempotent (#477) (2783944)
• throw on invalid credentials (#418) (5b836fd)
• deps: update dependency google-gax to v1 (#476) (adfeb9c)
• deps: update dependency yargs to v13 (#417) (fac8d4e)

Build System

• upgrade engines field to >=8.10.0 (#463) (35cb71f)

BREAKING CHANGES

• upgrade engines field to >=8.10.0 (build!: upgrade engines field to >=8.10.0 #463)

[codecov]

Codecov Report

Merging #483 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #483   +/-   ##
=======================================
  Coverage   97.85%   97.85%           
=======================================
  Files          10       10           
  Lines        1303     1303           
  Branches      345      345           
=======================================
  Hits         1275     1275           
  Partials       28       28

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