Made a variation of the basic inline preview for wiki pages.
Made commentTools work with wiki forms.
Close/defocus editors on escape.

* Pressing escape while the big editor's textarea is focused will close
it.
* Pessing escape in other markdown forms will defocus them and allow
use of keyboard navigation.
* Opening the big editor will autofocus the textarea.
* Closing the big editor will autofocus the original textarea.
Add fade button to the big editor.