Bug 24764: TinyMCE shouldnt do automatic code cleanup when editing HTML in News Feature

Bug 24764: TinyMCE shouldnt do automatic code cleanup when editing HTML in News Feature

TEST PLAN:
1. Make a new news item and use the TinyMCE editor, click on the <> icon to go to the Source code editor
2. Add some HTML like <i class="fa fa-facebook-official" aria-hidden="true">TEST</i> and save it.
3. Go back in and notice that TinyMCE has changed it to: <p><em class="fa fa-facebook-official">TEST</em></p>
4. It should not auto clean up and also it should not autowrap with <p> tag.
5. Apply patch patch, and repeat step 2. Save again.
6. It should not have automatiicly changed any HTML or added any <p> wrapper.

Signed-off-by: David Cook <dcook@prosentient.com.au>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Joy Nelson <joy@bywatersolutions.com>
(cherry picked from commit 0b7d3b4331c69238ae04fdb895baeae9ce0742cf)

Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>