[ci skip]

[ci skip]

YAML's behavior in this guide. [ci skip]

this should be `:nodoc:` in order to be parsed.

Improve grammar in configuring serve_static_files guide [ci skip]

[ci skip]

Update description for `start` parameter.

The term 'constant autoloading' can be mistakenly
construed as 'constantly autoloading'.

Replace guides.ror.org/v4.2.0 with guides.ror.org

No need to point links to http://guides.rubyonrails.org/v4.2.0/... now
that the Ruby on Rails guides point to 4.2.0.

Fix link in autoloading guide

[ci skip]

Add link for Domain-Specific Language [ci skip]

Make bin/setup portable

Add nodoc to some constants [skip ci]

Allow static asset serving from env variable (enhanced!)
Conflicts:
	railties/CHANGELOG.md

`db:schema:load` and `db:structure:load` do not purge the database

`rack.version` was bumped in https://github.com/rack/rack/commit/28e77c710ac2ddb35c436d78d72e28f28f964446

This reverts commit da5cc10e.

Fixes #18091

See also https://github.com/rails/rails/pull/18003#commitcomment-9030909

I find that `Specifies the starting point for the batch processing.`
does not give enough information for me to understand what this
parameter actually does.

/cc @senny Is this change documented somewhere?

Add docs for `extract_domain`, `extract_subdomains`, `extract_subdomain`.

Add doc examples for `url`, `protocol`, `raw_host_with_port`, `host`,
`host_with_port`, `port`, `standard_port`, `standard_port?`, `optional_port`,
`port_string`.

[ci skip]

And also bundler cache

Add docs for AS::TestCase::test_order

Document `test_order` and `test_order=` from `ActiveSupport::TestCase`.

[ci skip]

Spelling fix [ci skip]