refactor Hash#slice and Hash#extract!

Change the message string to use in  test case.

Update CHANGELOG to fix wrong extension.

Fix has_many through associations when mass_assignment_sanitizer is strict

[Proposal] Schema cache dump

Reason: Temporarily reverting this because it has uncovered an issue that
prevents Sam's test suite from passing.

This reverts commit 9b2c38b7.

Reason: We are about to temporarily revert the change to the default.

This reverts commit 5c0aba23.

Add tests to test that through associations are not readonly, and we can update the records we retrive from the association

Enhance PostgreSQL Adapter schema support

Update ActiveRecord::AttributeMethods#attribute_present? to return false for empty strings

Add test case for #5307

odd and even keys are not scoped by activerecord.

warning fix : mismatched indentations at 'end' with 'case'

Adds :layout option to render :partial when a collection is given.

Refactor ActionDispatch::UploadedFile

Removed some useless docstrings and no-doc'ed some.

Revert table_name= needs connection now, so just stub table_name

Increasing minimum version of mail due to security vulnerability found in Mail 2.4.1 for sendmail or exim

Always passing a respond block from to responder

Compute asset paths from the request if RAILS_RELATIVE_URL_ROOT not set