Refactor items from Misc related to Content Management into said category; add Wagtail FEdit

[Nigel2392]

A Wagtail package to add frontend editing to your Wagtail website.
Tests are in the package directory itself.
I wasn't quite sure where to categorize this, blogging/news OK for a library like this?

[Nigel2392]

Maybe a new category called "Content Management" would be better - possibly naming should be different.

This OK?

[Nigel2392]

I am not quite sure if this is OK - this does seem to streamline the Awesome Wagtail list a lot more.

Order is kept between all packages added; looking at the Misc section these packages do fit better into a "Content Management" section. Seeing as they're for managing content.

I'll happily rollback to only adding Wagtail FEdit if this goes a bit too far - for a lack of better words. 😉