Changes default render behavior from file to template.
Skip isolated tests for PRs

They're valuable, but the types of errors they catch are fairly rare: we
can address them post-merge when they show up.
Fix assertions in AR::TestCase::AttributeMethodsTest

This test has always been green because it uses "assert" and the first
argument is an truthy class/object.
Merge pull request #16998 from yuki24/fix-false-assertion

Fix false assertions in AR::TestCase::AttributeMethodsTest
Fix another false assertions

 * The assertions in AS::Duration don't actually assert.
 * The assertion in Railtie will pass even when `eager_load_namespaces`
   doesn't include `AppTemplate::Application` if `Rails.application` is
   truthy.

For more details, see here:

 * https://github.com/rails/rails/pull/16998
 * https://github.com/rails/rails/pull/17000
Wrap Adequate Record release notes at 80 chars [ci skip]
Wrap it up! :trollface: [ci skip]
Merge pull request #17000 from yuki24/fix-false-assertions

Fix another false assertions
Remove wrapping <div> in form helpers from doc

[ci skip]

89ff1f8 and 1de258e6 removed from the HTML generated by the form helpers
the <div> that was wrapping the field elements inside the <form>.

This commit updates the documentation of the methods to reflect the
two commits above.
Merge pull request #17001 from claudiob/remove-wrapping-div-from-form-helpers-doc

Remove wrapping <div> in form helpers from doc [ci skip]
Allow attaching files while the mail view is rendered
Merge pull request #16974 from silp-com/mail_was_called

ActionMailer: mark mail as called after instead of before processing it
Added RDoc for each Active Job adapter
Merge pull request #16999 from cristianbica/activejob-adapters-rdoc

[ci skip] Added RDoc for each Active Job adapter
Merge pull request #16888 from jejacks0n/render_template

Changes default render behavior from file to template.
CHANGELOG for 07635a7
Merge pull request #16985 from matthewd/no-isolated-for-prs

Skip isolated tests for PRs