Merge pull request #12 from Quexer69/master

Update CKEditor.php
fixed typo
Merge branch 'master' of git://github.com/schmunk42/p3extensions
update CKEditor for extraPlugins -
(in config/main.php add in params ->
Example Plugin (equation):
'ext.ckeditor.extraPlugins' => array(
            'equation' => 1,
        ),