…phtml-2004041903580

* 'develop' of github.com:ampproject/amp-wp: (48 commits)
  Bump https-proxy-agent from 2.2.2 to 2.2.4 (#4596)
  Update dependency babel-jest to v25.3.0 (#4550)
  Update dependency core-js to v3.6.5 (#4558)
  For the 'Preview AMP' button, use a title instead of a tooltip (#4601)
  Bump stable tag to 1.5.3
  Fix handling of Mustache templates (#4583)
  Stub request based on test scenario (#4588)
  Return early instead of storing eventual return value in variable
  Improve phpdoc and logic conditions
  Update links in pull request template
  Update contributing.md with link to wiki
  Remove engineering.md now that it is on the wiki
  Remove project-management.md since only applicable to Stories
  Add conditions for comment feed, trackback, robots, and favicon
  Fix typo in global phpdoc
  Update tests after block-library/style.css changes in Gutenberg 7.9 (#4579)
  Remove special conditions for Reader mode; remove need for $exit condition in redirects
  Fix translators comment
  Add comment explaining short-circuit behavior when query var is present
  Update version for _doing_it_wrong() from 1.5.3 to 1.6.0
  ...

…filter-list-table-row-actions

* 'develop' of github.com:ampproject/amp-wp: (56 commits)
  Bump https-proxy-agent from 2.2.2 to 2.2.4 (#4596)
  Update dependency babel-jest to v25.3.0 (#4550)
  Update dependency core-js to v3.6.5 (#4558)
  For the 'Preview AMP' button, use a title instead of a tooltip (#4601)
  Update pull request template based on new workflow
  Bump stable tag to 1.5.3
  Fix handling of Mustache templates (#4583)
  Stub request based on test scenario (#4588)
  Return early instead of storing eventual return value in variable
  Improve phpdoc and logic conditions
  Update links in pull request template
  Update contributing.md with link to wiki
  Remove engineering.md now that it is on the wiki
  Remove project-management.md since only applicable to Stories
  Add conditions for comment feed, trackback, robots, and favicon
  Fix typo in global phpdoc
  Update tests after block-library/style.css changes in Gutenberg 7.9 (#4579)
  Remove special conditions for Reader mode; remove need for $exit condition in redirects
  Fix translators comment
  Add comment explaining short-circuit behavior when query var is present
  ...

…widgets-registration

* 'develop' of github.com:ampproject/amp-wp: (88 commits)
  Fix grammar typo
  Bump CSS cache version
  Update composer.lock
  Use patch file instead of diff
  Update patch: Fix parsing CSS selectors which contain commas
  Update php-css-parser to dev-master#bc6ec74; remove patches/php-css-parser-138-extended.patch
  Add test to demonstrate failure to parse class names containing escaped fractions
  Restrict metaboxes which appear on the validated URL screen
  Update hook priority in test_add_admin_hooks
  Restrict row actions for taxonomy terms
  Add test for disable-inline-width on amp-img
  Exclude data-ampdevmode attribute exclusion rule
  Update spec to 2004142326360 to remove container layout from amp-list
  Bump https-proxy-agent from 2.2.2 to 2.2.4 (#4596)
  Update dependency babel-jest to v25.3.0 (#4550)
  Update dependency core-js to v3.6.5 (#4558)
  For the 'Preview AMP' button, use a title instead of a tooltip (#4601)
  Update pull request template based on new workflow
  Bump stable tag to 1.5.3
  Fix handling of Mustache templates (#4583)
  ...