Moving core related global functions to a separate file
Adding a Readme and composer.json to the Core namespace
Fixed autoloader section
Removing reference to App.encoding
Removing HTTP_BASE env check
Fixing tests
update hasError() - fix#4563
Merge pull request #4558 from cakephp/3.0-split-core

3.0 split core
fix for #4563
add regression test for #4563
Merge pull request #4573 from antograssiot/3.0

3.0 - fix#4563 error div on file input