sub-theme's ckeditor_stylesheets[] included before parent's instead of after

[jenlampton]

Describe your issue or idea

I would like my sub-theme to override it's parent's CSS, but when the style sheet is added before the parent, the parent CSS overrides mine.

Steps to reproduce (if reporting a bug)

• Create a theme, add ckeditor_stylesheets[]
• Create a sub-theme of that theme, add another ckeditor_stylesheets[]
• Edit a node with the ckeditor on it
• Inspect the source code of the ckeditory iframe
• Note the child-theme CSS appearing before the parents in the HEAD tag