Update mapper documenation for match helper [ci skip]
This piece of documentation is out of date.
The use of match without any via option is prevented, now
the HTTP verbs have to be explicitly set. If they're not set then
the error message in normalize_conditions! (around line 186) is
shown.
Adjusting 4.0 release notes to show more appropriate replacements for dynamic finders [ci skip]
Document a difference between pluck and select [ci skip]

Explain that `pluck` differs from `select` in that it does not construct `ActiveRecord` objects and thus model-level overrides are unavailable.
Merge pull request #12077 from estsauver/doc_fix

Update mapper documenation for match helper [ci skip]
Merge pull request #12094 from brocktimus/master

Substitute dynamic finders in 4.0 release notes [ci skip]
render_to_string shouldn't play with response_body
Add a test case for exists? with multiple values
Fix method name typos
Merge pull request #12130 from egilburg/patch-1

Document a difference between pluck and select [ci skip]
Merge pull request #12139 from vipulnsward/typos_av

Fix method name typos
fix actionview and activemodel test cases typos
Merge pull request #12143 from rajcybage/fixing_typos

fix actionview and activemodel test cases typos
push constant lookup in the a cache object
only construct the FixtureSet with AR models
push logic outside the FixtureSet constructor
no need to dup
Fix typo in set_callback docs. [ci skip]
Merge pull request #12148 from gzohari/callback-typo

Fix typo in set_callback docs. [ci skip]
Do not use instance variables if they are not reused elsewhere
Fix failure with minitest 5.0.7

Require minitest/mock in test where stub method is needed.

Apparently this was being "imported" by minitest pride plugin, which
previously required "minitest/autorun", that required "minitest/mock",
making the method available by chance.

It has been changed in minitest:
https://github.com/seattlerb/minitest/commit/595ce955c0d89575726d10fc18d2afd8f334bcbe

So we need to make sure we require what we really need where necessary.