Allow authentication header to not have to specify 'token=' key.

Fixes: https://github.com/rails/rails/issues/17108.
Correct test description for large integer test
Abstract encoding strategy for ActiveSupport::MessageVerifier
Allow habtm class_name option to be consistent with other associations
Merge pull request #17604 from rymohr/message-verifier-case-sensitivity

Abstract encoding strategy for ActiveSupport::MessageVerifier
[ci skip] Add one more example to routing testing, and highlight association
name keywords
Merge branch 'sandipransing-master'
[ci skip] Capybara added to other testing approaches
Merge pull request #17612 from sandipransing/testing-guide

[ci skip] Capybara added to other testing approaches
[ci skip] Improve upon testing tasks guide

Add missing testing tasks and also improve upon tasks descriptions
Merge pull request #17613 from sandipransing/testing-guide

[ci skip] Improve upon testing tasks guide
Add basic tests for ActionDispatch::ExceptionWrapper
exec_prepared is GVL friendly, so lets use it.

also increase the version of pg required so that people will get the
GVL friendly version
[ci skip] Remove deprecated testing tasks

This has changed recently and so rake test:all and rake
test:all:db are deprecated.
Merge pull request #17618 from sandipransing/testing-guide

[ci skip] Remove deprecated testing tasks
[CI SKIP] Corrections to testing guide.

Partially revert https://github.com/rails/rails/commit/c31e638a37946a120f6dbf207127d36beea5ab85.
Merge pull request #17619 from tgxworld/fixes_to_testing_guide

[ci skip] Corrections to testing guide.
Build fix when running in isolation

`Computer` class needs to be require

See #17217 for more details
Merge pull request #17614 from gsamokovarov/exception-wrapper-basic-tests

Add basic tests for ActionDispatch::ExceptionWrapper
Use `DelegateClass` instead of `SimpleDelegator` for type decorators

There is a significant performance difference between the two. Closes