* insert 'and' into a poorly formed sentence.
* avoid using 'reverse' twice in the same sentence (which would indicate
  the opposite of what is meant)

Single brackets

sudden ending of form looks incomplete and catches [ci skip]

Add more information about passing variables to translation definitions
and also merge this part with the "Interpolation" one as the latter
didn't bring any new information. Moreover, each one was referring to
the other for further information.

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From the Postgresql 9.4+ docs

> If you only need randomly-generated (version 4) UUIDs, consider using
  the gen_random_uuid() function from the pgcrypto module instead.

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The has_and_belongs_to_many default join_table behavior changed
between Rails 3.2 and Rails 4.0 and should be noted in the
appropriate section of the upgrade guide.

commit:
https://github.com/rails/rails/commit/46492949b8c09f99db78b9f7a02d039e7bc6a702

* avoid using unnecessary commas
* fix some typos

This reverts commit 00aa1afa, reversing
changes made to b584cc68.

Reason:

As far as we can tell, this should not be the case. Both localhost, 127.0.0.1
and ::1 is "supposed to work", so this is probably a bug somewhere.

Reopening #19815 instead.

Rewording in accordance with the documentation guidelines (‘Prefer
wordings that avoid "you"s and "your”s.’) and to remove in particular
“if you'd call”.

1. Make clear where rake rdoc is executed
2. Make clear where the generated HTML files for the guides are stored
3. Use bundler 1.3.5 or later

Explain config.active_support.test_order defaults
to :random in newly-generated applications thanks
to generated config/environments/test.rb, otherwise
default is :sorted (until Rails 5.0).

Rails has different naming conventions for the inverse assertion
methods. While minitest uses `refute` we use `_not`. We should have a
table listing the common assertions that you want to use in the Rails
context.

Refs #18305.

Follow-up to #19672 and 8b0aa0c1.

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