First, let's clean some HTML.

* Carousel is no more needed here.
* If you need to comment your code, you need to remove it.
* I'm leaving the macro thing commented though because I need to make them a modal.

Issue #324
Makes the articles editor back to using a textarea with widearea to handle fullscreen editing.

Issue #324.
Makes page form simpler to user.

Issue #324
Merge branch 'feature/make-the-simple-editor-really-simple-after-all/324' into milestone/publify-8