#presence used

Clean up `require ‘active_support/deprecation’` and remove circular require

Move `SchemaCreation` to its own file instead of `AbstractAdapter`.

Ruby's new Hash syntax applied in actionmailer

Refer to Rails.env from AR only when Rails is defined

Updated guides link for 3.2.x to latest stable version 3.2.15 [ci skip]

Use rescue with a splat rather and catching all exceptions and manually filtering in Kernel#suppress

Make it clear that require 'active_support' is required [ci-skip]

Add No Touching

Fix syntax error in atom_feed example [ci skip]

Builder's #tag! takes either String or Symbol as the first parameter

As of Rails 4.0 `remove_column` is no longer an alias for `remove_columns`.
The type is actually valid and used when issuing a rollback (new `change` method).

This reverts commit 9c9d4948.

[ci skip] Fix curl response output and use strong parameters in update action

Remove the unused, undocumented SQLite3Adapter#supports_count_distinct?

    
This has returned true since 3cc9b5f1, and is not used internally.

Drop some comments that document the implementation rather than the interface.

Allow Pathnames to be added to eager load paths

Include URL helpers in TestController in bug report templates [ci skip]

[ci skip]

Fixes #12848.

updated documentation for Integer [ci skip]

Make static error pages responsive