Fixed typo [ci skip]

singular is more suited to
change to "check out"
e-mail => email, and subject/verb agreement
add punctuation
Remove duplicate configuration option for ActiveSupport [ci skip]

Fixes rails/rails#13732
`requies` => `requires`
`easiy` => `easy`
`framwork` => `framework`
Remove old comments about suppressing warnings.
Upgraded jquery-rails gem version
Tests that skips a controller filters that was set up using a class
Merge pull request #13962 from iwiznia/test_controller_skip_action_class

Test for skipping a controller filter set up with a class Part 3
Fixed spelling error: `extracetd` => `extracted`
Fix wordy sentence
Merge pull request #13968 from kintamanimatt/fix-wordy-sentence

Fix wordy sentence [ci-skip]
Require action_view to fix missing constant

Previously, requiring action_view/view_paths did cause an uninitialized
constant error for ENCODING_FLAG, which is defined in action_view.
[Testing Guide] Mention :unauthorized in assert_response explanation [ci skip]
Merge pull request #13967 from fphilipe/fix-missing-action-view-const

Require action_view to fix missing constant ENCODING_FLAG
Merge pull request #13952 from prathamesh-sonpatki/testing

[Testing Guide] Mention :unauthorized in assert_response explanation [ci skip]
Adjust test value so that timezone has no effect

If the test is run in a timezone that is behind UTC it fails because
the time generated is ahead of 0000-01-01 00:00:00. Just increase the
time subtracted so that timezone has no effect.