Revert "Declaration of Ivory\CKEditorBundle\Form\Type\CKEditorType::getDefaultOptions() must be compatible with that of Symfony\Component\Form\FormTypeInterface::getDefaultOptions()"

This reverts commit 2d48610c7af1bd881b0bb8f4d8897da1d84d815c.
Made it work with non-root installs. I'm sure there's a cleaner way but I don't know it at the moment.
Merge pull request #12 from jmather/2.0

Make it work in non-root installs
[Test] Fix test suite
Refactor 2.0 branch
[LICENSE] Move it to root directory
Fix CS
[DependencyInjection] Use ivory_ckeditor instead of ivory_ck_editor as alias
[Test][Form] Fix invalid assert + refactor
[Test] Remove useless autoloading
[Test] Add bundle test
[DependencyInjection] Add tests
Fix CS
[Widget] Remove trailing whitespaces
Merge branch '2.0'

Conflicts:
	Form/Type/CKEditorType.php
	Resources/views/Form/ckeditor_widget.html.twig
	Tests/Form/Type/CKEditorTypeTest.php
[Travis] Fix config