Merge pull request #16645 from sgrif/sg-perf-regression

Don't calculate in-place changes twice
[ActionMailer] require activejob railtie
Merge pull request #15932 from joseluistorres/issue-11957-uuids

adding the exception RecordNotFound to UUID find #11957
Merge pull request #16598 from seuros/master

[ActionMailer] require activejob railtie
Cache the value of `changed_attributes` when calling `changes_applied`

`changes_applied` calles `changes`, which will call `changed_attributes`
multiple times in a loop. This method actually performs work now, so we
should cache the results while looping over it when we know it cannot
change.
Use system /tmp when testing actionpack

https://github.com/rails/rails/commit/c64bff2c87ebf363703c63ecd4a96d56a1a78364
added support and enabled parallel execution of the actionpack tests.

However it introduced https://github.com/rails/rails/commit/c64bff2c87ebf363703c63ecd4a96d56a1a78364
since one cannot connect to a socket file that's inside a Vagrant synced folder
due to security restrictions, and DRb tries to.

Also rename the temporary files to make it obvious that they're rails-related,
since now they're placed outside the project's directory.

Fixes https://github.com/rails/rails/commit/c64bff2c87ebf363703c63ecd4a96d56a1a78364
Clarify that unknown keys will become HTML attrs

Docs for all the other form tag helpers in this
file already clarify this.

[ci skip]
Remove erroneous form_tag option docs

This is true of the first param (url_for_options),
not of the second options param which is being
documented here.

[ci skip]
[ActiveJob] Add hook for test_framework and test templates
Merge pull request #16648 from seuros/master

[ActiveJob] Add hook for test_framework
Merge pull request #16602 from thetron/active_job_que_enqueue_at_support

Added enqueue_at support for QueAdapter in ActiveJob
Merge pull request #16647 from tjschuck/form_for_doc_options

Documentation update for form_for options
Use zero-padding for number_to_rounded_converter
Merge pull request #16650 from zzak/fix-precision-number_to_rounded_converter

Use zero-padding for number_to_rounded_converter
Properly referencing AR::RecordNotFound in AJ guide rescuing example
Merge pull request #16655 from brocktimus/20140823_doco_change

Correct AR::RecordNotFound in AJ guide rescue example [ci skip]
Fix example code in Active Job guide [ci skip]
Merge pull request #16659 from y-yagi/patch-4

Fix example code in Active Job guide [ci skip]
Update documentation to match change in #5942 [ci skip]
recount files quantity