Commit 6e4a810f changed the implementation
from class_eval to define_method, but missed the access to the constant
versus the access to the constant name.

Remove extra whitespace

Reuse the already existing logic used for grabbing this information from
the updated columns.

When generating an app with --skip_active_record, an extra
line of whitespace was included unnecessarily.

Replace `class_eval` with `define_method` for enum

Also improve the example to show as shell command [ci skip]

https://github.com/rails/rails/commit/db41eb8a6ea88b854bf5cd11070ea4245e1639c5#commitcomment-4502683

We used to support the `BACKTRACE` environment variable but when
we switched to MiniTest it got removed: f9382cd7

This commit adds back the functionality to show the unfiltered backtrace when needed.
This also works when you run your tests with `rake`:

* `BACKTRACE=1 bin/rake test`
* `BACKTRACE=1 ruby -Itest ...`

Not adding webconsole by default in new apps

Revert "ActiveRecord::Base#<=> has been removed.  Primary keys may not be in order," -- will be replaced with a check to ensure that the keys used for comparison are integers, and only fail if they are not.

This reverts commit 6256734e.

Conflicts:
	activerecord/CHANGELOG.md

Explicit mapping for enum

Extend ActiveRecord::Base#cache_key to take an optional list of timestamp attributes of which the highest will be used.

Added Numeric#in_milliseconds, like 1.hour.in_milliseconds, so we can feed them to JavaScript functions like getTime().

This reverts commit c2b5a8e6, reversing
changes made to 1918b12c.

See: https://github.com/rails/rails/pull/9660#issuecomment-27627493

Added ActiveRecord::Base#enum for declaring enum attributes where the values map to integers in the database, but can be queried by name

Minor doc fix of ActiveModel::Naming. [ci skip]

Conflicts:
	activemodel/lib/active_model/naming.rb

Change ActionController::Parameters#require behavior when value is empty