Moving Cake\Error\Exception to Cake\Core\Error
fixing some failing tests
Merge remote-tracking branch 'origin/3.0' into 3.0-move-exception

Conflicts:
	src/Cache/CacheRegistry.php
	src/Core/Configure.php
Fixing the rest of the failing tests
Improving docblock
Core\Error -> Core\Exception
Merge remote-tracking branch 'origin/3.0' into 3.0-move-exception

Conflicts:
	src/Auth/BaseAuthorize.php
	src/Auth/ControllerAuthorize.php
	src/Controller/Component/AuthComponent.php
Merge pull request #4433 from cakephp/3.0-move-exception

3.0 move exception