Added support for bigdecimals in perform_later

Refactor `case_{sensitive|insensitive}_comparison`

[ci skip]

Adds exception object to instrumenter's payload

Merge pull request #22874 from prathamesh-sonpatki/create-application-model-under-namespaced-dir-in-plugin

Create application_record.rb under namespaced directory in plugin

It was made public by mistake in
https://github.com/rails/rails/commit/539b69e0.

Remove unnecessary enable,disable_extension on tests

uuid-ossp extension is alreadly enabled on test schema.
And `disable_extension!('uuid-ossp', connection)` can be a cause of test failure.
`ActiveRecord::StatementInvalid: PG::UndefinedFunction: ERROR:  function uuid_generate_v1() does not exist`
will happen depending on the execution order.

- Earlier it was creating application_record.rb under `app/models`, after
  this change, it will create application_record.rb under
  `app/models/plugin_name` similar to other application classes.

Better example for ActiveRecord::Relation#or [ci skip]

Remove a wasted space [ci skip]

using `enum kind: [ :any, :income, :expense ]` syntax, value is already an
integer and using `enum kind: { any: 'any', income: 'income', expense:
'expense' }` syntax value is a string.

This allows us to define the mapping in the enum definition.

This reverts commit 933decce.

Before:

    ```
    SELECT  1 AS one FROM "topics" WHERE "topics"."title" = 'abc' LIMIT $1  [["LIMIT", 1]]
    ```

After:

    ```
    SELECT  1 AS one FROM "topics" WHERE "topics"."title" = $1 LIMIT $2 [["title", "abc"], ["LIMIT", 1]]
    ```

Add tests for ActionController::Renderers::use_renderers

Update copyright notices to 2016 [ci skip]

Remove client-side Action Cable debugging code

Added to aid in developing Action Cable, but isn't neccessary for production operation.

Fix AC::Parameters#to_unsafe_h to return all unfiltered values

  - Adds new key/value pair to payload when an exception is raised
    e.g. `:exception_object=> #<RuntimeError: FAIL>`
  - Updates relevant test
  - Adds CHANGELOG entry

- AC::Parameters#convert_parameters_to_hashes should return filtered or
  unfiltered values based on whether it is called from `to_h` or `to_unsafe_h`
  instead of always defaulting to `to_h`.
- Fixes #22841

Lets not put fullstop at the end of a migration pending command

- So that we can just copy paste the command and execute it

Fixed setting errors details on autosaved associations

Configurable redirect and secure cookies for ActionDispatch::SSL

Support extended grapheme clusters and UAX 29

Fixes #22773

Fix typo in Testing guide: test -> text

Two USAGE files were referring to Active Record and Active Model
without a space, which is incorrect because we're referring to
the framework name and not the constants.

It didn't mention Action Cable's engine.

Avoid `Time.parse` for static date

It was removed by mistake at 877a411d

  Benchmark.ips do |x|
    x.report('Time.parse') { Time.parse('2011-01-01') }
    x.report('Time.new')   { Time.new(2011, 1, 1) }
  end

  Calculating -------------------------------------
            Time.parse     6.640k i/100ms
              Time.new    15.082k i/100ms
  -------------------------------------------------
            Time.parse     71.915k (± 3.1%) i/s -    365.200k
              Time.new    167.645k (± 3.3%) i/s -    844.592k

Make `postgresql_version` public