Add tinymce
Change body field type to TinyMCE.HTML
Change body widget to TinyMCE HTML
Add extra_head block
Add form.media
Change post.body filter to safe
Change body field
Add TinyMCE

Add TinyMCE to model Post field body. TopicCreateForm and PostForm body field was change. An `extra_head` template block was created for the required javascript that the new widget needs.
Add post particle
Add post particle
Add post particle
Clean up unneed elements