LPS-34551 - Message Board: The table is abnormal in CKeditor

Hey @brianchandotcom,

The previous pull request had a mistake in it.  I have fixed the issue with this pull request.  @natecavanaugh has reviewed it and told me to send this directly to you.

Attached is an update for http://issues.liferay.com/browse/LPS-34551.

Screen shot:
Before:
![before](https://f.cloud.github.com/assets/860951/416564/c3bebc30-ac50-11e2-8d68-c1c033b550b0.png)

After:
![after](https://f.cloud.github.com/assets/860951/416565/cab1264a-ac50-11e2-894f-2e396461bb32.png)


Please let me know if you have any questions.  Thanks!