Just corrected some minor CKEditor CSS errors.

Hi!

First a big Hello to everyone as I'm new here (so forgive me if I made something wrong:).

I did this not really worldshaking patch just for two reasons: first as a little Git-training (as I'm new to Git also) for bigger patches to come and second to get rid of those little irritating error badges that NetBeans shows in the project tree.

Perhaps it would even be better to switch directly to CKEditor 4.3 instead of merging this request. I didn't try (yet) as I seems that there were some changes applied to the sources and someone else knowing what to change could perhaps do the update much faster.