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
Add config to disable schema dump after migration

* Add a config on Active Record named `dump_schema_after_migration`
* Schema dump doesn't happen if the config is set to false
* Set default value of the config to true
* Set config in generated production environment file to false
* Update configuration guide
* Update CHANGELOG
Merge branch 'dump-schema-after-migration-flag' of git://github.com/emilsoman/rails into emilsoman-dump-schema-after-migration-flag

Conflicts:
	activerecord/CHANGELOG.md
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