Remove some checks if MiniTest is defined

Implement #swapcase and #swapcase! for multibyte strings

Don't fork a process when assets:precompile:nondigest is invoked in assets:precompile:all.

Don't fork a process when assets:precompile:nondigest is invoked in assets:precompile:all. Improve GH #3694.

use Kernel#Array instead of Array.wrap in Rails::Generators::Actions

Fixed failing tests
This reverts commit 8350ce97.

Nil values uniquines validation

Fix routing test and remove deprecated method

It breaks the build for mysql.

This reverts commit 958d25df, reversing
changes made to 8f309e31.

Activerecord 1.9 compat

Remove more Array.wrap calls

Require ActiveSupport::TestCase form ActiveSupport isolation tests

Nil values uniquines validation

This reverts commit d80e4ee2.

No need to care about 1.8 anymore, so reverting :)

This reverts commit 665ef116.

There is no need for the return anymore, so reverting.

This reverts commit 675094b2.